2n+3(400-n)=1050

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


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

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

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

Solving
1200 + -1n = 1050

Solving for variable 'n'.

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

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

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

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

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

Simplifying
n = 150

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