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

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

jim_thompson5910 · Answer

solve the 2nd equation for x

x - 2y = -5

x = -5 + 2y

jim_thompson5910 · Answer

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

anonymous · Answer

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

jim_thompson5910 · Answer

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

anonymous · Answer

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

anonymous · Answer

Its -1! Lol thanks guys

jim_thompson5910 · Answer

yep, you got it

x = -5 + 2y

x = -5 + 2(2)

x = -5 + 4

x = -1

anonymous · Answer

:D