Y=x-7 Y=-4x-2 Solve by substitution help please Question Y=x-7 Y=-4x-2 Solve by substitution help please in progress 0 Math Lydia 2 weeks 2021-11-16T02:32:03+00:00 2021-11-16T02:32:03+00:00 2 Answers 0 views 0

## Answers ( )

Answer:(1, – 6 )

Step-by-step explanation:Given the 2 equations

y = x – 7 → (1)

y = – 4x – 2 → (2)

Substitute y = x – 7 into (2)

x – 7 = – 4x – 2 ( add 4x to both sides )

5x – 7 = – 2 ( add 7 to both sides )

5x = 5 ( divide both sides by 5 )

x = 1

Substitute x = 1 into either of the 2 equations for corresponding value of y

Substituting x = 1 into (1)

y = 1 – 7 = – 6

Solution is (1, – 6 )

Answer:6= 7-1

-14= -4·3-2

Step-by-step explanation: