5.5X+4.5(400-X)=2080

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Solution for 5.5X+4.5(400-X)=2080 equation:


Simplifying
5.5X + 4.5(400 + -1X) = 2080
5.5X + (400 * 4.5 + -1X * 4.5) = 2080
5.5X + (1800 + -4.5X) = 2080

Reorder the terms:
1800 + 5.5X + -4.5X = 2080

Combine like terms: 5.5X + -4.5X = 1X
1800 + 1X = 2080

Solving
1800 + 1X = 2080

Solving for variable 'X'.

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

Add '-1800' to each side of the equation.
1800 + -1800 + 1X = 2080 + -1800

Combine like terms: 1800 + -1800 = 0
0 + 1X = 2080 + -1800
1X = 2080 + -1800

Combine like terms: 2080 + -1800 = 280
1X = 280

Divide each side by '1'.
X = 280

Simplifying
X = 280

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