2(2x-4)-(x+4)=90

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Solution for 2(2x-4)-(x+4)=90 equation:


Simplifying
2(2x + -4) + -1(x + 4) = 90

Reorder the terms:
2(-4 + 2x) + -1(x + 4) = 90
(-4 * 2 + 2x * 2) + -1(x + 4) = 90
(-8 + 4x) + -1(x + 4) = 90

Reorder the terms:
-8 + 4x + -1(4 + x) = 90
-8 + 4x + (4 * -1 + x * -1) = 90
-8 + 4x + (-4 + -1x) = 90

Reorder the terms:
-8 + -4 + 4x + -1x = 90

Combine like terms: -8 + -4 = -12
-12 + 4x + -1x = 90

Combine like terms: 4x + -1x = 3x
-12 + 3x = 90

Solving
-12 + 3x = 90

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 3x = 90 + 12

Combine like terms: -12 + 12 = 0
0 + 3x = 90 + 12
3x = 90 + 12

Combine like terms: 90 + 12 = 102
3x = 102

Divide each side by '3'.
x = 34

Simplifying
x = 34

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