3x+(7x-84)=180

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Solution for 3x+(7x-84)=180 equation:


Simplifying
3x + (7x + -84) = 180

Reorder the terms:
3x + (-84 + 7x) = 180

Remove parenthesis around (-84 + 7x)
3x + -84 + 7x = 180

Reorder the terms:
-84 + 3x + 7x = 180

Combine like terms: 3x + 7x = 10x
-84 + 10x = 180

Solving
-84 + 10x = 180

Solving for variable 'x'.

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

Add '84' to each side of the equation.
-84 + 84 + 10x = 180 + 84

Combine like terms: -84 + 84 = 0
0 + 10x = 180 + 84
10x = 180 + 84

Combine like terms: 180 + 84 = 264
10x = 264

Divide each side by '10'.
x = 26.4

Simplifying
x = 26.4

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