5s+21=7s+17

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Solution for 5s+21=7s+17 equation:


Simplifying
5s + 21 = 7s + 17

Reorder the terms:
21 + 5s = 7s + 17

Reorder the terms:
21 + 5s = 17 + 7s

Solving
21 + 5s = 17 + 7s

Solving for variable 's'.

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

Add '-7s' to each side of the equation.
21 + 5s + -7s = 17 + 7s + -7s

Combine like terms: 5s + -7s = -2s
21 + -2s = 17 + 7s + -7s

Combine like terms: 7s + -7s = 0
21 + -2s = 17 + 0
21 + -2s = 17

Add '-21' to each side of the equation.
21 + -21 + -2s = 17 + -21

Combine like terms: 21 + -21 = 0
0 + -2s = 17 + -21
-2s = 17 + -21

Combine like terms: 17 + -21 = -4
-2s = -4

Divide each side by '-2'.
s = 2

Simplifying
s = 2

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