8.9x+2.9y=7.8

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Solution for 8.9x+2.9y=7.8 equation: 


Simplifying
8.9x + 2.9y = 7.8

Solving
8.9x + 2.9y = 7.8

Solving for variable 'x'.

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

Add '-2.9y' to each side of the equation.
8.9x + 2.9y + -2.9y = 7.8 + -2.9y

Combine like terms: 2.9y + -2.9y = 0.0
8.9x + 0.0 = 7.8 + -2.9y
8.9x = 7.8 + -2.9y

Divide each side by '8.9'.
x = 0.8764044944 + -0.3258426966y

Simplifying
x = 0.8764044944 + -0.3258426966y

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