Question

Solve the problem by the method of transposing with the property:

X+2X+90=180

Answer 1

Simplifying
2x + x + 90 = 180

Reorder the terms:
90 + 2x + x = 180

Combine like terms: 2x + x = 3x
90 + 3x = 180

Solving
90 + 3x = 180

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-90' to each side of the equation.
90 + -90 + 3x = 180 + -90

Combine like terms: 90 + -90 = 0
0 + 3x = 180 + -90
3x = 180 + -90

Combine like terms: 180 + -90 = 90
3x = 90

Divide each side by '3'.
x = 30

Simplifying
x = 30