3(7x+7)=189

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Solution for 3(7x+7)=189 equation: 


Simplifying
3(7x + 7) = 189

Reorder the terms:
3(7 + 7x) = 189
(7 * 3 + 7x * 3) = 189
(21 + 21x) = 189

Solving
21 + 21x = 189

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 = 189 + -21

Combine like terms: 21 + -21 = 0
0 + 21x = 189 + -21
21x = 189 + -21

Combine like terms: 189 + -21 = 168
21x = 168

Divide each side by '21'.
x = 8

Simplifying
x = 8

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