To solve for x, you need to isolate/get the variable "x" by itself in the equation:
x - 60 = 180 Add 60 on both sides to get "x" by itself
x - 60 + 60 = 180 + 60
x = 240
PROOF
x - 60 = 180 Substitute/plug in 240 into "x" since x = 240
240 - 60 = 180
180 = 180
