15=4x-3*x

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Solution for 15=4x-3*x equation:


Simplifying
15 = 4x + -3x

Combine like terms: 4x + -3x = 1x
15 = 1x

Solving
15 = 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
15 + -1x = 1x + -1x

Combine like terms: 1x + -1x = 0
15 + -1x = 0

Add '-15' to each side of the equation.
15 + -15 + -1x = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -1x = 0 + -15
-1x = 0 + -15

Combine like terms: 0 + -15 = -15
-1x = -15

Divide each side by '-1'.
x = 15

Simplifying
x = 15

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