3(10-2x)=9

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Solution for 3(10-2x)=9 equation: 


Simplifying
3(10 + -2x) = 9
(10 * 3 + -2x * 3) = 9
(30 + -6x) = 9

Solving
30 + -6x = 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 + -6x = 9 + -30

Combine like terms: 30 + -30 = 0
0 + -6x = 9 + -30
-6x = 9 + -30

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

Divide each side by '-6'.
x = 3.5

Simplifying
x = 3.5

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