3(10+7x)=72

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Solution for 3(10+7x)=72 equation: 


Simplifying
3(10 + 7x) = 72
(10 * 3 + 7x * 3) = 72
(30 + 21x) = 72

Solving
30 + 21x = 72

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 + 21x = 72 + -30

Combine like terms: 30 + -30 = 0
0 + 21x = 72 + -30
21x = 72 + -30

Combine like terms: 72 + -30 = 42
21x = 42

Divide each side by '21'.
x = 2

Simplifying
x = 2

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