3x+99=15x-261

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Solution for 3x+99=15x-261 equation:


Simplifying
3x + 99 = 15x + -261

Reorder the terms:
99 + 3x = 15x + -261

Reorder the terms:
99 + 3x = -261 + 15x

Solving
99 + 3x = -261 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
99 + 3x + -15x = -261 + 15x + -15x

Combine like terms: 3x + -15x = -12x
99 + -12x = -261 + 15x + -15x

Combine like terms: 15x + -15x = 0
99 + -12x = -261 + 0
99 + -12x = -261

Add '-99' to each side of the equation.
99 + -99 + -12x = -261 + -99

Combine like terms: 99 + -99 = 0
0 + -12x = -261 + -99
-12x = -261 + -99

Combine like terms: -261 + -99 = -360
-12x = -360

Divide each side by '-12'.
x = 30

Simplifying
x = 30

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