6x-(3x-9)=2(2x+1)

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Solution for 6x-(3x-9)=2(2x+1) equation:


Simplifying
6x + -1(3x + -9) = 2(2x + 1)

Reorder the terms:
6x + -1(-9 + 3x) = 2(2x + 1)
6x + (-9 * -1 + 3x * -1) = 2(2x + 1)
6x + (9 + -3x) = 2(2x + 1)

Reorder the terms:
9 + 6x + -3x = 2(2x + 1)

Combine like terms: 6x + -3x = 3x
9 + 3x = 2(2x + 1)

Reorder the terms:
9 + 3x = 2(1 + 2x)
9 + 3x = (1 * 2 + 2x * 2)
9 + 3x = (2 + 4x)

Solving
9 + 3x = 2 + 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.
9 + 3x + -4x = 2 + 4x + -4x

Combine like terms: 3x + -4x = -1x
9 + -1x = 2 + 4x + -4x

Combine like terms: 4x + -4x = 0
9 + -1x = 2 + 0
9 + -1x = 2

Add '-9' to each side of the equation.
9 + -9 + -1x = 2 + -9

Combine like terms: 9 + -9 = 0
0 + -1x = 2 + -9
-1x = 2 + -9

Combine like terms: 2 + -9 = -7
-1x = -7

Divide each side by '-1'.
x = 7

Simplifying
x = 7

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