Use substitution to find the x-coordinate of the solution to each system.

7) - x + 5y = 19

y=-2x + 6

A-2 B) 2

C) 1 D) - 1

8) - 8x + 5y = - 20

y=-3x + 19

A) - 6 B) - 4

C) 4 D) 5

9) 4x - 6y = 12

y = - 2x - 10

A) 3

B) 7

C) Infinite number of solutions

D) - 3

10) y = x + 10

| 3x - y=-18

A) 4 B) - 6

C) 8 D) - 8

Question

23 January, 22:50

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Answers (1)

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Abigayle · Answer 1

Answer: (7) x = 1

(8) x = 5

(9) x = - 3

(10) x = - 4

Use substitution to find the x-coordinate of the solution to each system.7) - x + 5y = 19y=-2x + 6A-2 B) 2C) 1 D) - 18) - 8x + 5y = - 20y=-3x + 19A) - 6 B) - 4C) 4 D) 59) 4x - 6y = 12y = - 2x - 10A) 3B) 7C) Infinite number of solutionsD) - 310) y = x + 10| 3x - y=-18A) 4 B) - 6C) 8 D) - 8