Question

Solve the equation below

Answer 1

Answer:

(-2, 3)

Step-by-step explanation:

Substitute 2x + 7 for y in y = -2x - 1

• $2x + 7=-2x-1$

Add 2x to both sides

• $2x + 7 + 2x = -2x - 1 + 2x$
• $4x + 7 = -1$

Subtract 7 from both sides.

• $4x + 7 - 7 = -1 - 7$
• $4x = -8$  

Divide both sides by 4.

• $\frac{4x}{4}= \frac{-8}{4}$
• $x = -2$

Substitute -2 for x in y = 2x + 7

• $y = 2(-2)+7$

Simplify both sides.

• $y = -4 + 7$
• $y = 3$

Therefore, the answer is (-2, 3).