X+15=7x-21

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Solution for X+15=7x-21 equation:


Simplifying
X + 15 = 7x + -21

Reorder the terms:
15 + X = 7x + -21

Reorder the terms:
15 + X = -21 + 7x

Solving
15 + X = -21 + 7x

Solving for variable 'X'.

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

Add '-15' to each side of the equation.
15 + -15 + X = -21 + -15 + 7x

Combine like terms: 15 + -15 = 0
0 + X = -21 + -15 + 7x
X = -21 + -15 + 7x

Combine like terms: -21 + -15 = -36
X = -36 + 7x

Simplifying
X = -36 + 7x

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