7(3s+5)=287

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Solution for 7(3s+5)=287 equation:


Simplifying
7(3s + 5) = 287

Reorder the terms:
7(5 + 3s) = 287
(5 * 7 + 3s * 7) = 287
(35 + 21s) = 287

Solving
35 + 21s = 287

Solving for variable 's'.

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

Add '-35' to each side of the equation.
35 + -35 + 21s = 287 + -35

Combine like terms: 35 + -35 = 0
0 + 21s = 287 + -35
21s = 287 + -35

Combine like terms: 287 + -35 = 252
21s = 252

Divide each side by '21'.
s = 12

Simplifying
s = 12

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