100=30+2x+5x

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Solution for 100=30+2x+5x equation:


Simplifying
100 = 30 + 2x + 5x

Combine like terms: 2x + 5x = 7x
100 = 30 + 7x

Solving
100 = 30 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
100 + -7x = 30 + 7x + -7x

Combine like terms: 7x + -7x = 0
100 + -7x = 30 + 0
100 + -7x = 30

Add '-100' to each side of the equation.
100 + -100 + -7x = 30 + -100

Combine like terms: 100 + -100 = 0
0 + -7x = 30 + -100
-7x = 30 + -100

Combine like terms: 30 + -100 = -70
-7x = -70

Divide each side by '-7'.
x = 10

Simplifying
x = 10

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