1.2x+2.8y=21

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Solution for 1.2x+2.8y=21 equation: 


Simplifying
1.2x + 2.8y = 21

Solving
1.2x + 2.8y = 21

Solving for variable 'x'.

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

Add '-2.8y' to each side of the equation.
1.2x + 2.8y + -2.8y = 21 + -2.8y

Combine like terms: 2.8y + -2.8y = 0.0
1.2x + 0.0 = 21 + -2.8y
1.2x = 21 + -2.8y

Divide each side by '1.2'.
x = 17.5 + -2.333333333y

Simplifying
x = 17.5 + -2.333333333y

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