(7x-20)+(2x+10)=180

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Solution for (7x-20)+(2x+10)=180 equation:


Simplifying
(7x + -20) + (2x + 10) = 180

Reorder the terms:
(-20 + 7x) + (2x + 10) = 180

Remove parenthesis around (-20 + 7x)
-20 + 7x + (2x + 10) = 180

Reorder the terms:
-20 + 7x + (10 + 2x) = 180

Remove parenthesis around (10 + 2x)
-20 + 7x + 10 + 2x = 180

Reorder the terms:
-20 + 10 + 7x + 2x = 180

Combine like terms: -20 + 10 = -10
-10 + 7x + 2x = 180

Combine like terms: 7x + 2x = 9x
-10 + 9x = 180

Solving
-10 + 9x = 180

Solving for variable 'x'.

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

Add '10' to each side of the equation.
-10 + 10 + 9x = 180 + 10

Combine like terms: -10 + 10 = 0
0 + 9x = 180 + 10
9x = 180 + 10

Combine like terms: 180 + 10 = 190
9x = 190

Divide each side by '9'.
x = 21.11111111

Simplifying
x = 21.11111111

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