Answer:
X = 180 + -1Y
Step-by-step explanation:
X + Y = 180
Solving for variable 'X'.
Move all terms containing X to the left, all other terms to the right.
Add '-1Y' to each side of the equation.
X + Y + -1Y = 180 + -1Y
Combine like terms: Y + -1Y = 0
X + 0 = 180 + -1Y
X = 180 + -1Y
Simplifying
X = 180 + -1Y
