(7x-21)+(5x-3)=180

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Solution for (7x-21)+(5x-3)=180 equation:


Simplifying
(7x + -21) + (5x + -3) = 180

Reorder the terms:
(-21 + 7x) + (5x + -3) = 180

Remove parenthesis around (-21 + 7x)
-21 + 7x + (5x + -3) = 180

Reorder the terms:
-21 + 7x + (-3 + 5x) = 180

Remove parenthesis around (-3 + 5x)
-21 + 7x + -3 + 5x = 180

Reorder the terms:
-21 + -3 + 7x + 5x = 180

Combine like terms: -21 + -3 = -24
-24 + 7x + 5x = 180

Combine like terms: 7x + 5x = 12x
-24 + 12x = 180

Solving
-24 + 12x = 180

Solving for variable 'x'.

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

Add '24' to each side of the equation.
-24 + 24 + 12x = 180 + 24

Combine like terms: -24 + 24 = 0
0 + 12x = 180 + 24
12x = 180 + 24

Combine like terms: 180 + 24 = 204
12x = 204

Divide each side by '12'.
x = 17

Simplifying
x = 17

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