7x-126=78-5x

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Solution for 7x-126=78-5x equation:


Simplifying
7x + -126 = 78 + -5x

Reorder the terms:
-126 + 7x = 78 + -5x

Solving
-126 + 7x = 78 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
-126 + 7x + 5x = 78 + -5x + 5x

Combine like terms: 7x + 5x = 12x
-126 + 12x = 78 + -5x + 5x

Combine like terms: -5x + 5x = 0
-126 + 12x = 78 + 0
-126 + 12x = 78

Add '126' to each side of the equation.
-126 + 126 + 12x = 78 + 126

Combine like terms: -126 + 126 = 0
0 + 12x = 78 + 126
12x = 78 + 126

Combine like terms: 78 + 126 = 204
12x = 204

Divide each side by '12'.
x = 17

Simplifying
x = 17

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