30=6x+2(-x-9)

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Solution for 30=6x+2(-x-9) equation:


Simplifying
30 = 6x + 2(-1x + -9)

Reorder the terms:
30 = 6x + 2(-9 + -1x)
30 = 6x + (-9 * 2 + -1x * 2)
30 = 6x + (-18 + -2x)

Reorder the terms:
30 = -18 + 6x + -2x

Combine like terms: 6x + -2x = 4x
30 = -18 + 4x

Solving
30 = -18 + 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.
30 + -4x = -18 + 4x + -4x

Combine like terms: 4x + -4x = 0
30 + -4x = -18 + 0
30 + -4x = -18

Add '-30' to each side of the equation.
30 + -30 + -4x = -18 + -30

Combine like terms: 30 + -30 = 0
0 + -4x = -18 + -30
-4x = -18 + -30

Combine like terms: -18 + -30 = -48
-4x = -48

Divide each side by '-4'.
x = 12

Simplifying
x = 12

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