30+2x+5x=100

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


Simplifying
30 + 2x + 5x = 100

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

Solving
30 + 7x = 100

Solving for variable 'x'.

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

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

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

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

Divide each side by '7'.
x = 10

Simplifying
x = 10

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