3(4+x)=90

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Solution for 3(4+x)=90 equation: 


Simplifying
3(4 + x) = 90
(4 * 3 + x * 3) = 90
(12 + 3x) = 90

Solving
12 + 3x = 90

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 = 90 + -12

Combine like terms: 12 + -12 = 0
0 + 3x = 90 + -12
3x = 90 + -12

Combine like terms: 90 + -12 = 78
3x = 78

Divide each side by '3'.
x = 26

Simplifying
x = 26

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