7x-(5x+4)=12

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Solution for 7x-(5x+4)=12 equation:


Simplifying
7x + -1(5x + 4) = 12

Reorder the terms:
7x + -1(4 + 5x) = 12
7x + (4 * -1 + 5x * -1) = 12
7x + (-4 + -5x) = 12

Reorder the terms:
-4 + 7x + -5x = 12

Combine like terms: 7x + -5x = 2x
-4 + 2x = 12

Solving
-4 + 2x = 12

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 2x = 12 + 4

Combine like terms: -4 + 4 = 0
0 + 2x = 12 + 4
2x = 12 + 4

Combine like terms: 12 + 4 = 16
2x = 16

Divide each side by '2'.
x = 8

Simplifying
x = 8

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