3(4.00+x)=45

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Solution for 3(4.00+x)=45 equation: 


Simplifying
3(4.00 + x) = 45
(4.00 * 3 + x * 3) = 45
(12 + 3x) = 45

Solving
12 + 3x = 45

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 3x = 45 + -12

Combine like terms: 12 + -12 = 0
0 + 3x = 45 + -12
3x = 45 + -12

Combine like terms: 45 + -12 = 33
3x = 33

Divide each side by '3'.
x = 11

Simplifying
x = 11

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