7(9+3x)=189

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Solution for 7(9+3x)=189 equation: 


Simplifying
7(9 + 3x) = 189
(9 * 7 + 3x * 7) = 189
(63 + 21x) = 189

Solving
63 + 21x = 189

Solving for variable 'x'.

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

Add '-63' to each side of the equation.
63 + -63 + 21x = 189 + -63

Combine like terms: 63 + -63 = 0
0 + 21x = 189 + -63
21x = 189 + -63

Combine like terms: 189 + -63 = 126
21x = 126

Divide each side by '21'.
x = 6

Simplifying
x = 6

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