Solve the systems in Exercises 15–22.
20.
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EBK COLLEGE ALGEBRA IN CONTEXT
- Use the graphs of the linear functions to solve Exercises 89–90. x + 3y = 12 x - 3y = -6 x - y = 4 x - 3y = 6 89. Write the linear system whose solution set is {(6, 2)}. Express each equation in the system in slope-intercept form.arrow_forwardExercises 143–145 will help you prepare for the material covered in the next section. y2 - yı 143. If (x1, yı) = (-3, 1) and (x2, y2) = (-2, 4), find X2 - X1 144. Find the ordered pairs (- 0) and (0, 4х — Зу - 6 % 0. satisfying 145. Solve for y: 3x + 2y – 4 = 0.arrow_forwardPLS MAKE THE SOLUTIONS COMPREHENSIVE THANK YOU VERY MUCH!arrow_forward
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- In Exercises 65–69, solve each equation. 2x 65. 3 1 + 1 6. 66. 2 10 2 2x 67. 3 68. 4 2 + 3 4 Зх + 1 13 1 - x 69. 3 2 4 6 ||arrow_forwardQ/use Gaussian Elimination method to find the value of a, aa2 a3? 6a, + (155)a, +(5525)a, +(225125)a, = 6.000677 (155)a, +(5525)a, +(225125)a, +(9790625)a, =154.851 (5525)a, +(225125)a, +(9790625)a, +(442503125)a, = 5517.846 (225125)a, + (9790625)a, +(442503125)a, + (20515015625)a, = 224816.7arrow_forwardexpand (x+y)6arrow_forward
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