Applying the Concepts
In Problems 53–60, use substitution to solve each system of linear equations in two variables.
59. Fun with Numbers The sum of two numbers is 17, and their difference is 7. Determine the numbers by solving the following system of equations, using x and y to represent the unknown numbers.
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Elementary & Intermediate Algebra
- .2 y = 4 - x² and x +y = 2.arrow_forward2. Expand and simplify to express each equation in standard form. [2, 2, 2, 3, 3, 2] a) y = (x + 5)(x + 2) b) y = (x- 4)(x+ 3) c) y = (2x- 3)(x-6) d) y = (3x + 4)2 e) y = 3(x – 4)2 +1 f) y = (4x + 3)(4x- 3)arrow_forwardFor Exercises 5–10, a. Simplify the expression. b. Substitute 0 for h in the simplified expression. 2(x + h)? + 3(x + h) · 5. (2x + 3x) 3(x + h - 4(x + h) – (3x - 4x) 6. h 1 1 1 1 (x + h) – 2 7. x - 2 2(x + h) + 5 8. 2x + 5 h (x + h) – x 9. (x + h) 10. - X h harrow_forward
- Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell