3(5+7x)=30

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Solution for 3(5+7x)=30 equation: 


Simplifying
3(5 + 7x) = 30
(5 * 3 + 7x * 3) = 30
(15 + 21x) = 30

Solving
15 + 21x = 30

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 21x = 30 + -15

Combine like terms: 15 + -15 = 0
0 + 21x = 30 + -15
21x = 30 + -15

Combine like terms: 30 + -15 = 15
21x = 15

Divide each side by '21'.
x = 0.7142857143

Simplifying
x = 0.7142857143

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