2s+3(400-s)=1050

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Solution for 2s+3(400-s)=1050 equation:


Simplifying
2s + 3(400 + -1s) = 1050
2s + (400 * 3 + -1s * 3) = 1050
2s + (1200 + -3s) = 1050

Reorder the terms:
1200 + 2s + -3s = 1050

Combine like terms: 2s + -3s = -1s
1200 + -1s = 1050

Solving
1200 + -1s = 1050

Solving for variable 's'.

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

Add '-1200' to each side of the equation.
1200 + -1200 + -1s = 1050 + -1200

Combine like terms: 1200 + -1200 = 0
0 + -1s = 1050 + -1200
-1s = 1050 + -1200

Combine like terms: 1050 + -1200 = -150
-1s = -150

Divide each side by '-1'.
s = 150

Simplifying
s = 150

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