30+7x=9

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Solution for 30+7x=9 equation: 


Simplifying
30 + 7x = 9

Solving
30 + 7x = 9

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 = 9 + -30

Combine like terms: 30 + -30 = 0
0 + 7x = 9 + -30
7x = 9 + -30

Combine like terms: 9 + -30 = -21
7x = -21

Divide each side by '7'.
x = -3

Simplifying
x = -3

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