Question

What is the value of the x variable in the solution to the following system of equations?
2x + 3y = 4
x - 2y = -5

2

-2

1

-1

Answer 1

solve the 2nd equation for x

x - 2y = -5

x = -5 + 2y

Answer 2

then plug this into the first equation

2x + 3y = 4

2(-5 + 2y) + 3y = 4

-10 + 4y + 3y = 4

-10 + 7y = 4

I'll let you finish

Answer 3

plux in first equation 2(-5+2y) +3y=4

Answer 4

solve for y, then use the solution for y to get x

Answer 5

7y=14 so y=2 just replace it you find you answer

Answer 6

Its -1! Lol thanks guys

Answer 7

yep, you got it

x = -5 + 2y

x = -5 + 2(2)

x = -5 + 4

x = -1

Answer 8

:D