15X+7.5Y=21

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Solution for 15X+7.5Y=21 equation: 


Simplifying
15X + 7.5Y = 21

Solving
15X + 7.5Y = 21

Solving for variable 'X'.

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

Add '-7.5Y' to each side of the equation.
15X + 7.5Y + -7.5Y = 21 + -7.5Y

Combine like terms: 7.5Y + -7.5Y = 0.0
15X + 0.0 = 21 + -7.5Y
15X = 21 + -7.5Y

Divide each side by '15'.
X = 1.4 + -0.5Y

Simplifying
X = 1.4 + -0.5Y

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