7x-50+2x-30=100

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Solution for 7x-50+2x-30=100 equation:


Simplifying
7x + -50 + 2x + -30 = 100

Reorder the terms:
-50 + -30 + 7x + 2x = 100

Combine like terms: -50 + -30 = -80
-80 + 7x + 2x = 100

Combine like terms: 7x + 2x = 9x
-80 + 9x = 100

Solving
-80 + 9x = 100

Solving for variable 'x'.

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

Add '80' to each side of the equation.
-80 + 80 + 9x = 100 + 80

Combine like terms: -80 + 80 = 0
0 + 9x = 100 + 80
9x = 100 + 80

Combine like terms: 100 + 80 = 180
9x = 180

Divide each side by '9'.
x = 20

Simplifying
x = 20

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