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

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Solution for 5(x-1)-(4x+4)=12 equation:


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

Reorder the terms:
5(-1 + x) + -1(4x + 4) = 12
(-1 * 5 + x * 5) + -1(4x + 4) = 12
(-5 + 5x) + -1(4x + 4) = 12

Reorder the terms:
-5 + 5x + -1(4 + 4x) = 12
-5 + 5x + (4 * -1 + 4x * -1) = 12
-5 + 5x + (-4 + -4x) = 12

Reorder the terms:
-5 + -4 + 5x + -4x = 12

Combine like terms: -5 + -4 = -9
-9 + 5x + -4x = 12

Combine like terms: 5x + -4x = 1x
-9 + 1x = 12

Solving
-9 + 1x = 12

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 1x = 12 + 9

Combine like terms: -9 + 9 = 0
0 + 1x = 12 + 9
1x = 12 + 9

Combine like terms: 12 + 9 = 21
1x = 21

Divide each side by '1'.
x = 21

Simplifying
x = 21

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