Question

What is the solution to the system of equations?
x + y = 5
x - 2y = 2

I have no idea how to do this lol

Answer 1

Use the elimination method to solve for one variable and then use it to find the other.

Answer 2

Subtract the 2 equations and x will be eliminated

Answer 3

You've got your two equations,

x+y = 5
x-2y = 2

Let's eliminate the x's first and solve for y's. Multiply -1 to the first equation.

-1(x+y =5)
x - 2y =2
___________
-x -y = -5
x- 2y = 2
_____________
-3y = -3
y = 1

Answer 4

using this value of y=1.... find x.