111-(6x)=9x+21

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Solution for 111-(6x)=9x+21 equation:


Simplifying
111 + -1(6x) = 9x + 21

Remove parenthesis around (6x)
111 + -1 * 6x = 9x + 21

Multiply -1 * 6
111 + -6x = 9x + 21

Reorder the terms:
111 + -6x = 21 + 9x

Solving
111 + -6x = 21 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
111 + -6x + -9x = 21 + 9x + -9x

Combine like terms: -6x + -9x = -15x
111 + -15x = 21 + 9x + -9x

Combine like terms: 9x + -9x = 0
111 + -15x = 21 + 0
111 + -15x = 21

Add '-111' to each side of the equation.
111 + -111 + -15x = 21 + -111

Combine like terms: 111 + -111 = 0
0 + -15x = 21 + -111
-15x = 21 + -111

Combine like terms: 21 + -111 = -90
-15x = -90

Divide each side by '-15'.
x = 6

Simplifying
x = 6

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