3X+4Y=400

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Solution for 3X+4Y=400 equation: 


Simplifying
3X + 4Y = 400

Solving
3X + 4Y = 400

Solving for variable 'X'.

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

Add '-4Y' to each side of the equation.
3X + 4Y + -4Y = 400 + -4Y

Combine like terms: 4Y + -4Y = 0
3X + 0 = 400 + -4Y
3X = 400 + -4Y

Divide each side by '3'.
X = 133.3333333 + -1.333333333Y

Simplifying
X = 133.3333333 + -1.333333333Y

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