3(20+x)=80

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Solution for 3(20+x)=80 equation: 


Simplifying
3(20 + x) = 80
(20 * 3 + x * 3) = 80
(60 + 3x) = 80

Solving
60 + 3x = 80

Solving for variable 'x'.

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

Add '-60' to each side of the equation.
60 + -60 + 3x = 80 + -60

Combine like terms: 60 + -60 = 0
0 + 3x = 80 + -60
3x = 80 + -60

Combine like terms: 80 + -60 = 20
3x = 20

Divide each side by '3'.
x = 6.666666667

Simplifying
x = 6.666666667

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