3(2x-4)-(4x+2)=7

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Solution for 3(2x-4)-(4x+2)=7 equation:


Simplifying
3(2x + -4) + -1(4x + 2) = 7

Reorder the terms:
3(-4 + 2x) + -1(4x + 2) = 7
(-4 * 3 + 2x * 3) + -1(4x + 2) = 7
(-12 + 6x) + -1(4x + 2) = 7

Reorder the terms:
-12 + 6x + -1(2 + 4x) = 7
-12 + 6x + (2 * -1 + 4x * -1) = 7
-12 + 6x + (-2 + -4x) = 7

Reorder the terms:
-12 + -2 + 6x + -4x = 7

Combine like terms: -12 + -2 = -14
-14 + 6x + -4x = 7

Combine like terms: 6x + -4x = 2x
-14 + 2x = 7

Solving
-14 + 2x = 7

Solving for variable 'x'.

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

Add '14' to each side of the equation.
-14 + 14 + 2x = 7 + 14

Combine like terms: -14 + 14 = 0
0 + 2x = 7 + 14
2x = 7 + 14

Combine like terms: 7 + 14 = 21
2x = 21

Divide each side by '2'.
x = 10.5

Simplifying
x = 10.5

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