12x-(7x-5)=40

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Solution for 12x-(7x-5)=40 equation:


Simplifying
12x + -1(7x + -5) = 40

Reorder the terms:
12x + -1(-5 + 7x) = 40
12x + (-5 * -1 + 7x * -1) = 40
12x + (5 + -7x) = 40

Reorder the terms:
5 + 12x + -7x = 40

Combine like terms: 12x + -7x = 5x
5 + 5x = 40

Solving
5 + 5x = 40

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + 5x = 40 + -5

Combine like terms: 5 + -5 = 0
0 + 5x = 40 + -5
5x = 40 + -5

Combine like terms: 40 + -5 = 35
5x = 35

Divide each side by '5'.
x = 7

Simplifying
x = 7

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