3(3+x)=45

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Solution for 3(3+x)=45 equation: 


Simplifying
3(3 + x) = 45
(3 * 3 + x * 3) = 45
(9 + 3x) = 45

Solving
9 + 3x = 45

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 3x = 45 + -9

Combine like terms: 9 + -9 = 0
0 + 3x = 45 + -9
3x = 45 + -9

Combine like terms: 45 + -9 = 36
3x = 36

Divide each side by '3'.
x = 12

Simplifying
x = 12

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