12x-(7x-2)=77

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Solution for 12x-(7x-2)=77 equation:


Simplifying
12x + -1(7x + -2) = 77

Reorder the terms:
12x + -1(-2 + 7x) = 77
12x + (-2 * -1 + 7x * -1) = 77
12x + (2 + -7x) = 77

Reorder the terms:
2 + 12x + -7x = 77

Combine like terms: 12x + -7x = 5x
2 + 5x = 77

Solving
2 + 5x = 77

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 5x = 77 + -2

Combine like terms: 2 + -2 = 0
0 + 5x = 77 + -2
5x = 77 + -2

Combine like terms: 77 + -2 = 75
5x = 75

Divide each side by '5'.
x = 15

Simplifying
x = 15

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