Given the system of equations.

4x+y=8

6x-9y=12

Which of the options represents the resulting equation after an equivalent expression for y is substituted into the second equation?

6x - 9 (4x - 8) = 12

4x + 4x - 8 = 8

6 (4x - 8) - 9y = 12

6x - 9 (-4x + 8) = 12

Question

29 July, 14:24

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Answers (1)

Know the Answer?

Yusuf · Answer 1

It would be the last one b/c

4x+y=8

Subtract 4 on both sides so it leaves

y=-4x+8

Just plug it back in to the second equation

6x-9 (-4x+8) = 12

Given the system of equations.4x+y=86x-9y=12Which of the options represents the resulting equation after an equivalent expression for y is substituted into the second equation?6x - 9 (4x - 8) = 124x + 4x - 8 = 86 (4x - 8) - 9y = 126x - 9 (-4x + 8) = 12