(X-13)+(7x-7)=180

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Solution for (X-13)+(7x-7)=180 equation:


Simplifying
(X + -13) + (7x + -7) = 180

Reorder the terms:
(-13 + X) + (7x + -7) = 180

Remove parenthesis around (-13 + X)
-13 + X + (7x + -7) = 180

Reorder the terms:
-13 + X + (-7 + 7x) = 180

Remove parenthesis around (-7 + 7x)
-13 + X + -7 + 7x = 180

Reorder the terms:
-13 + -7 + X + 7x = 180

Combine like terms: -13 + -7 = -20
-20 + X + 7x = 180

Solving
-20 + X + 7x = 180

Solving for variable 'X'.

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

Add '20' to each side of the equation.
-20 + X + 20 + 7x = 180 + 20

Reorder the terms:
-20 + 20 + X + 7x = 180 + 20

Combine like terms: -20 + 20 = 0
0 + X + 7x = 180 + 20
X + 7x = 180 + 20

Combine like terms: 180 + 20 = 200
X + 7x = 200

Add '-7x' to each side of the equation.
X + 7x + -7x = 200 + -7x

Combine like terms: 7x + -7x = 0
X + 0 = 200 + -7x
X = 200 + -7x

Simplifying
X = 200 + -7x

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