30+6x=21

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Solution for 30+6x=21 equation: 


Simplifying
30 + 6x = 21

Solving
30 + 6x = 21

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 + 6x = 21 + -30

Combine like terms: 30 + -30 = 0
0 + 6x = 21 + -30
6x = 21 + -30

Combine like terms: 21 + -30 = -9
6x = -9

Divide each side by '6'.
x = -1.5

Simplifying
x = -1.5

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