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

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


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

Reorder the terms:
4(-2 + x) + -1(2x + 1) = 12
(-2 * 4 + x * 4) + -1(2x + 1) = 12
(-8 + 4x) + -1(2x + 1) = 12

Reorder the terms:
-8 + 4x + -1(1 + 2x) = 12
-8 + 4x + (1 * -1 + 2x * -1) = 12
-8 + 4x + (-1 + -2x) = 12

Reorder the terms:
-8 + -1 + 4x + -2x = 12

Combine like terms: -8 + -1 = -9
-9 + 4x + -2x = 12

Combine like terms: 4x + -2x = 2x
-9 + 2x = 12

Solving
-9 + 2x = 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 + 2x = 12 + 9

Combine like terms: -9 + 9 = 0
0 + 2x = 12 + 9
2x = 12 + 9

Combine like terms: 12 + 9 = 21
2x = 21

Divide each side by '2'.
x = 10.5

Simplifying
x = 10.5

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