4(x-1)-(x+2)=12

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Solution for 4(x-1)-(x+2)=12 equation:


Simplifying
4(x + -1) + -1(x + 2) = 12

Reorder the terms:
4(-1 + x) + -1(x + 2) = 12
(-1 * 4 + x * 4) + -1(x + 2) = 12
(-4 + 4x) + -1(x + 2) = 12

Reorder the terms:
-4 + 4x + -1(2 + x) = 12
-4 + 4x + (2 * -1 + x * -1) = 12
-4 + 4x + (-2 + -1x) = 12

Reorder the terms:
-4 + -2 + 4x + -1x = 12

Combine like terms: -4 + -2 = -6
-6 + 4x + -1x = 12

Combine like terms: 4x + -1x = 3x
-6 + 3x = 12

Solving
-6 + 3x = 12

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 3x = 12 + 6

Combine like terms: -6 + 6 = 0
0 + 3x = 12 + 6
3x = 12 + 6

Combine like terms: 12 + 6 = 18
3x = 18

Divide each side by '3'.
x = 6

Simplifying
x = 6

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