30x+40y=90

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Solution for 30x+40y=90 equation: 


Simplifying
30x + 40y = 90

Solving
30x + 40y = 90

Solving for variable 'x'.

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

Add '-40y' to each side of the equation.
30x + 40y + -40y = 90 + -40y

Combine like terms: 40y + -40y = 0
30x + 0 = 90 + -40y
30x = 90 + -40y

Divide each side by '30'.
x = 3 + -1.333333333y

Simplifying
x = 3 + -1.333333333y

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