3(7x+6)=81

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Solution for 3(7x+6)=81 equation:


Simplifying
3(7x + 6) = 81

Reorder the terms:
3(6 + 7x) = 81
(6 * 3 + 7x * 3) = 81
(18 + 21x) = 81

Solving
18 + 21x = 81

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 21x = 81 + -18

Combine like terms: 18 + -18 = 0
0 + 21x = 81 + -18
21x = 81 + -18

Combine like terms: 81 + -18 = 63
21x = 63

Divide each side by '21'.
x = 3

Simplifying
x = 3

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