31-15=2(X-3)

Solution for 31-15=2(X-3) equation:

Simplifying
31 + -15 = 2(X + -3)

Combine like terms: 31 + -15 = 16
16 = 2(X + -3)

Reorder the terms:
16 = 2(-3 + X)
16 = (-3 * 2 + X * 2)
16 = (-6 + 2X)

Solving
16 = -6 + 2X

Solving for variable 'X'.

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

Add '-2X' to each side of the equation.
16 + -2X = -6 + 2X + -2X

Combine like terms: 2X + -2X = 0
16 + -2X = -6 + 0
16 + -2X = -6

Add '-16' to each side of the equation.
16 + -16 + -2X = -6 + -16

Combine like terms: 16 + -16 = 0
0 + -2X = -6 + -16
-2X = -6 + -16

Combine like terms: -6 + -16 = -22
-2X = -22

Divide each side by '-2'.
X = 11

Simplifying
X = 11