3x-(18-x)=3(x-4)

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Solution for 3x-(18-x)=3(x-4) equation:


Simplifying
3x + -1(18 + -1x) = 3(x + -4)
3x + (18 * -1 + -1x * -1) = 3(x + -4)
3x + (-18 + 1x) = 3(x + -4)

Reorder the terms:
-18 + 3x + 1x = 3(x + -4)

Combine like terms: 3x + 1x = 4x
-18 + 4x = 3(x + -4)

Reorder the terms:
-18 + 4x = 3(-4 + x)
-18 + 4x = (-4 * 3 + x * 3)
-18 + 4x = (-12 + 3x)

Solving
-18 + 4x = -12 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-18 + 4x + -3x = -12 + 3x + -3x

Combine like terms: 4x + -3x = 1x
-18 + 1x = -12 + 3x + -3x

Combine like terms: 3x + -3x = 0
-18 + 1x = -12 + 0
-18 + 1x = -12

Add '18' to each side of the equation.
-18 + 18 + 1x = -12 + 18

Combine like terms: -18 + 18 = 0
0 + 1x = -12 + 18
1x = -12 + 18

Combine like terms: -12 + 18 = 6
1x = 6

Divide each side by '1'.
x = 6

Simplifying
x = 6

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