7.9x+4.9y=30

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Solution for 7.9x+4.9y=30 equation: 


Simplifying
7.9x + 4.9y = 30

Solving
7.9x + 4.9y = 30

Solving for variable 'x'.

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

Add '-4.9y' to each side of the equation.
7.9x + 4.9y + -4.9y = 30 + -4.9y

Combine like terms: 4.9y + -4.9y = 0.0
7.9x + 0.0 = 30 + -4.9y
7.9x = 30 + -4.9y

Divide each side by '7.9'.
x = 3.797468354 + -0.6202531646y

Simplifying
x = 3.797468354 + -0.6202531646y

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