0.8x+.7y=300

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Solution for 0.8x+.7y=300 equation: 


Simplifying
0.8x + 0.7y = 300

Solving
0.8x + 0.7y = 300

Solving for variable 'x'.

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

Add '-0.7y' to each side of the equation.
0.8x + 0.7y + -0.7y = 300 + -0.7y

Combine like terms: 0.7y + -0.7y = 0.0
0.8x + 0.0 = 300 + -0.7y
0.8x = 300 + -0.7y

Divide each side by '0.8'.
x = 375 + -0.875y

Simplifying
x = 375 + -0.875y

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