3X+1Y=90

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Solution for 3X+1Y=90 equation: 


Simplifying
3X + 1Y = 90

Solving
3X + 1Y = 90

Solving for variable 'X'.

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

Add '-1Y' to each side of the equation.
3X + 1Y + -1Y = 90 + -1Y

Combine like terms: 1Y + -1Y = 0
3X + 0 = 90 + -1Y
3X = 90 + -1Y

Divide each side by '3'.
X = 30 + -0.3333333333Y

Simplifying
X = 30 + -0.3333333333Y

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