7x+42=5x+66

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Solution for 7x+42=5x+66 equation:


Simplifying
7x + 42 = 5x + 66

Reorder the terms:
42 + 7x = 5x + 66

Reorder the terms:
42 + 7x = 66 + 5x

Solving
42 + 7x = 66 + 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.
42 + 7x + -5x = 66 + 5x + -5x

Combine like terms: 7x + -5x = 2x
42 + 2x = 66 + 5x + -5x

Combine like terms: 5x + -5x = 0
42 + 2x = 66 + 0
42 + 2x = 66

Add '-42' to each side of the equation.
42 + -42 + 2x = 66 + -42

Combine like terms: 42 + -42 = 0
0 + 2x = 66 + -42
2x = 66 + -42

Combine like terms: 66 + -42 = 24
2x = 24

Divide each side by '2'.
x = 12

Simplifying
x = 12

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