X+15=4X-7

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Solution for X+15=4X-7 equation:


Simplifying
X + 15 = 4X + -7

Reorder the terms:
15 + X = 4X + -7

Reorder the terms:
15 + X = -7 + 4X

Solving
15 + X = -7 + 4X

Solving for variable 'X'.

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

Add '-4X' to each side of the equation.
15 + X + -4X = -7 + 4X + -4X

Combine like terms: X + -4X = -3X
15 + -3X = -7 + 4X + -4X

Combine like terms: 4X + -4X = 0
15 + -3X = -7 + 0
15 + -3X = -7

Add '-15' to each side of the equation.
15 + -15 + -3X = -7 + -15

Combine like terms: 15 + -15 = 0
0 + -3X = -7 + -15
-3X = -7 + -15

Combine like terms: -7 + -15 = -22
-3X = -22

Divide each side by '-3'.
X = 7.333333333

Simplifying
X = 7.333333333

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