15-9x=4x+28

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Solution for 15-9x=4x+28 equation:


Simplifying
15 + -9x = 4x + 28

Reorder the terms:
15 + -9x = 28 + 4x

Solving
15 + -9x = 28 + 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 + -9x + -4x = 28 + 4x + -4x

Combine like terms: -9x + -4x = -13x
15 + -13x = 28 + 4x + -4x

Combine like terms: 4x + -4x = 0
15 + -13x = 28 + 0
15 + -13x = 28

Add '-15' to each side of the equation.
15 + -15 + -13x = 28 + -15

Combine like terms: 15 + -15 = 0
0 + -13x = 28 + -15
-13x = 28 + -15

Combine like terms: 28 + -15 = 13
-13x = 13

Divide each side by '-13'.
x = -1

Simplifying
x = -1

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