2s+2(s-40)=440

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Solution for 2s+2(s-40)=440 equation:


Simplifying
2s + 2(s + -40) = 440

Reorder the terms:
2s + 2(-40 + s) = 440
2s + (-40 * 2 + s * 2) = 440
2s + (-80 + 2s) = 440

Reorder the terms:
-80 + 2s + 2s = 440

Combine like terms: 2s + 2s = 4s
-80 + 4s = 440

Solving
-80 + 4s = 440

Solving for variable 's'.

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

Add '80' to each side of the equation.
-80 + 80 + 4s = 440 + 80

Combine like terms: -80 + 80 = 0
0 + 4s = 440 + 80
4s = 440 + 80

Combine like terms: 440 + 80 = 520
4s = 520

Divide each side by '4'.
s = 130

Simplifying
s = 130

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