350=s+s+20

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Solution for 350=s+s+20 equation:


Simplifying
350 = s + s + 20

Reorder the terms:
350 = 20 + s + s

Combine like terms: s + s = 2s
350 = 20 + 2s

Solving
350 = 20 + 2s

Solving for variable 's'.

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

Add '-2s' to each side of the equation.
350 + -2s = 20 + 2s + -2s

Combine like terms: 2s + -2s = 0
350 + -2s = 20 + 0
350 + -2s = 20

Add '-350' to each side of the equation.
350 + -350 + -2s = 20 + -350

Combine like terms: 350 + -350 = 0
0 + -2s = 20 + -350
-2s = 20 + -350

Combine like terms: 20 + -350 = -330
-2s = -330

Divide each side by '-2'.
s = 165

Simplifying
s = 165

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