YX=2, I assume you need to get the 'X' and 'Y' alone. Also just for future reference, you're trying to get variables alone and all the numbers on the other side. Lastly, whatever you do to one side you do to the other. Good luck!
x = 4 + -2y Simplifying2y + x + -4 = 0
Reorder the terms:
-4 + x + 2y = 0
Solving
-4 + x + 2y = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '4' to each side of the equation.
-4 + x + 4 + 2y = 0 + 4
Reorder the terms:
-4 + 4 + x + 2y = 0 + 4
Combine like terms: -4 + 4 = 0
0 + x + 2y = 0 + 4
x + 2y = 0 + 4
Combine like terms: 0 + 4 = 4
x + 2y = 4
Add '-2y' to each side of the equation.
x + 2y + -2y = 4 + -2y
Combine like terms: 2y + -2y = 0
x + 0 = 4 + -2y
x = 4 + -2y
Simplifying
x = 4 + -2y
