3(2x-4)-1(x-2)=15

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Solution for 3(2x-4)-1(x-2)=15 equation:


Simplifying
3(2x + -4) + -1(x + -2) = 15

Reorder the terms:
3(-4 + 2x) + -1(x + -2) = 15
(-4 * 3 + 2x * 3) + -1(x + -2) = 15
(-12 + 6x) + -1(x + -2) = 15

Reorder the terms:
-12 + 6x + -1(-2 + x) = 15
-12 + 6x + (-2 * -1 + x * -1) = 15
-12 + 6x + (2 + -1x) = 15

Reorder the terms:
-12 + 2 + 6x + -1x = 15

Combine like terms: -12 + 2 = -10
-10 + 6x + -1x = 15

Combine like terms: 6x + -1x = 5x
-10 + 5x = 15

Solving
-10 + 5x = 15

Solving for variable 'x'.

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

Add '10' to each side of the equation.
-10 + 10 + 5x = 15 + 10

Combine like terms: -10 + 10 = 0
0 + 5x = 15 + 10
5x = 15 + 10

Combine like terms: 15 + 10 = 25
5x = 25

Divide each side by '5'.
x = 5

Simplifying
x = 5

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