Answer the circled ones. Thank xercisesCONCEPT PREVIEWFill in the blank to correctly complete each sentence.1. A(n) –is a statement that two expressions are equal.2. Toan equation means to find all numbers that make the equation a truestatement.3. A linear equation is a(n)because the greatest degree of the variable is 1.4. A(n)is an equation satisfied by every number that is a meaningful replace-ment for the variable.5. A(n).is an equation that has no solution.CONCEPT PREVIEWDecide whether each statement is true or false.6. The solution set of 2x + 5 = x – 3 is {-8}.7. The equation 5(x – 8) = 5x – 40 is an example of an identity.8. The equation 5x4x is an example of a contradiction.9. Solving the literal equation A = ; bh for the variable h gives h2b•10. CONCEPT PREVIEW Which one is not a linear equation?A. 5x + 7(x – 1) = -3xB. 9x2 - 4x + 3 = 0C. 7x + 8x = 13xD. 0.04x - 0.08x = 0.40%3D%3DSolve each equation. See Examples 1 and 2.11. 5x + 4 = 3x - 412. 9x + 11 = 7x + 1%3D(13, 6(3x – 1) = 8 – (10x – 14)14. 4(-2x + 1) = 6 – (2x – 4)%3D515. -x4 54- 2x+16.X+ -x5* 2 5*3 34.17. 3x + 5 – 5(x + 1) = 6x + 718. 5(x + 3) + 4.x - 3 = -(2x - 4)+ 219. 2[x - (4 + 2x) + 3] = 2x + 220. 4[2x – (3 - x) + 5] = -6x – 28%3Dx + 10x + 2(3x –(21(3x-2) =- (3х — 2) :(2x+5)22.%3D101524. 0.01x + 3.1 = 2.03x - 2.9623. 0.2x- 0.5 = 0.1x + 725. -4(2x- 6) + 8x = 5x + 24 + x 26. -8(3x + 4) + 6x = 4(x - 8) + 4x 427. 0.5x + x= x+ 10328.x+ +.25x x+ 2329. 0.08x + 0.06(x+ 12)= 7.7230. 0.04(x - 12) + 0.06.x = 1.52%3DDetermine whether each equation is an identity, a conditional equation, or a contradic-tion. Give the solution set. See Example 3.131. 4(2x + 7) = 2x + 22 + 3(2x + 2)32. (6x + 20) = x + 4 + 2(x+ 3)(33) 2(x- 8) = 3x - 1634. -8(x+ 5)= -8x – 5(x+ 8)%3D35, 4(x+ 7) = 2(x + 12) + 2(x + 1)36. –6(2x + 1) – 3(x – 4) = -15x + 1%3D37. 0.3(x + 2) – 0.5(x + 2) = -0.2x – 0.438. -0.6(x – 5) + 0.8(x – 6) = 0.2x – 1.8Solve each formula for the specified variable. Assume that the denominator is not 0 ifvariables appear in the denominator. See Examples 4(a) and (b).39 V= lwh,(volume of a rectangular box)for l40. I = Prt,(simple interest)for P41. P = a + b + c,(perimeter of a triangle)for c42. P = 21 + 2w, for w (perimeter of a rectangle)h(B + b),43. A =(area of a trapezoid)for Bh(B+ b),(area of a trapezoid)for h%3D45. S= 2rrh + 2™r²,(surface area of a right circular cylinder)for h46. .8t2,(distance traveled by a falling object)for g28147 S= 2lw + 2wh + 2hl, for h (surface area of a rectangular box)anillaboM bns anoitilqgA SIanoitsupllqbA(standardized value)48. z =for xSolve each equation for x. See Example 4(c).dong50. 5x- (2a + c) = 4(x + c)49, 2(x- a) + b = 3x + alot od amoldog%3D52. 4а - ах %3 3Ь + bx31. ax + b = 3(x – a)x-1= 2x- a2a54.- = ax + 353.56. ax + b? = bx - a?55. a'x + 3x = 2a?%3D%3D58. -x = (5x + 3)(3k + 1)57. 3x (2x- 1)(m + 4)Work each problem. See Example 5.Simple Interest59. Elmer borowed $3150 from his brother Julio to pay for books and tuition. He agreedto repay Julio in 6 months with simple annual interest at 4%.(a) How much will the interest amount to?(b) What amount must Elmer pay Julio at the end of the 6 months?60. Levada borrows $30,900 from her bank to open a florist shop. She agrees to repaymoney in 18 months with simple annual interest of 5.5%.th(a) How much must she pay the bank in 18 months?(hì How much of the amount in part (a) is interest?

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