7(3+3x)=210

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Solution for 7(3+3x)=210 equation: 


Simplifying
7(3 + 3x) = 210
(3 * 7 + 3x * 7) = 210
(21 + 21x) = 210

Solving
21 + 21x = 210

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 21x = 210 + -21

Combine like terms: 21 + -21 = 0
0 + 21x = 210 + -21
21x = 210 + -21

Combine like terms: 210 + -21 = 189
21x = 189

Divide each side by '21'.
x = 9

Simplifying
x = 9

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