Question

Solve the system of equations and choose the correct ordered pair 3x-4=26

2x+8y=-36

a.6,-2
b.2,-5
c.2,5
d.6,2

Answer 1

b.2,-5

Explanation:

I assume y is missing in the first equation, and the correct system is:

3x - 4y = 26

2x + 8y = -36

Rewrite the first equation. Divide both sides of the second equation by 2 and write it below the first equation. Then add the equations.

3x - 4y = 26

- x + 4y = -18

------------------------

4x = 8

x = 2

Now substitute 2 for x in the first original equation and solve for y.

3(2) - 4y = 26

-4y = 20

y = -5

Answer: (2, -5)