31x-12=2(15x)

Solution for 31x-12=2(15x) equation:

Simplifying
31x + -12 = 2(15x)

Reorder the terms:
-12 + 31x = 2(15x)

Remove parenthesis around (15x)
-12 + 31x = 2 * 15x

Multiply 2 * 15
-12 + 31x = 30x

Solving
-12 + 31x = 30x

Solving for variable 'x'.

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

Add '-30x' to each side of the equation.
-12 + 31x + -30x = 30x + -30x

Combine like terms: 31x + -30x = 1x
-12 + 1x = 30x + -30x

Combine like terms: 30x + -30x = 0
-12 + 1x = 0

Add '12' to each side of the equation.
-12 + 12 + 1x = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 1x = 0 + 12
1x = 0 + 12

Combine like terms: 0 + 12 = 12
1x = 12

Divide each side by '1'.
x = 12

Simplifying
x = 12