12x-(5x-3)=31

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Solution for 12x-(5x-3)=31 equation:


Simplifying
12x + -1(5x + -3) = 31

Reorder the terms:
12x + -1(-3 + 5x) = 31
12x + (-3 * -1 + 5x * -1) = 31
12x + (3 + -5x) = 31

Reorder the terms:
3 + 12x + -5x = 31

Combine like terms: 12x + -5x = 7x
3 + 7x = 31

Solving
3 + 7x = 31

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 7x = 31 + -3

Combine like terms: 3 + -3 = 0
0 + 7x = 31 + -3
7x = 31 + -3

Combine like terms: 31 + -3 = 28
7x = 28

Divide each side by '7'.
x = 4

Simplifying
x = 4

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