3(4s+7)=81

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Solution for 3(4s+7)=81 equation:


Simplifying
3(4s + 7) = 81

Reorder the terms:
3(7 + 4s) = 81
(7 * 3 + 4s * 3) = 81
(21 + 12s) = 81

Solving
21 + 12s = 81

Solving for variable 's'.

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

Add '-21' to each side of the equation.
21 + -21 + 12s = 81 + -21

Combine like terms: 21 + -21 = 0
0 + 12s = 81 + -21
12s = 81 + -21

Combine like terms: 81 + -21 = 60
12s = 60

Divide each side by '12'.
s = 5

Simplifying
s = 5

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