7(3s+9)=168

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Solution for 7(3s+9)=168 equation:


Simplifying
7(3s + 9) = 168

Reorder the terms:
7(9 + 3s) = 168
(9 * 7 + 3s * 7) = 168
(63 + 21s) = 168

Solving
63 + 21s = 168

Solving for variable 's'.

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

Add '-63' to each side of the equation.
63 + -63 + 21s = 168 + -63

Combine like terms: 63 + -63 = 0
0 + 21s = 168 + -63
21s = 168 + -63

Combine like terms: 168 + -63 = 105
21s = 105

Divide each side by '21'.
s = 5

Simplifying
s = 5

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