2.1x-0.9y=15

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Solution for 2.1x-0.9y=15 equation: 


Simplifying
2.1x + -0.9y = 15

Solving
2.1x + -0.9y = 15

Solving for variable 'x'.

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

Add '0.9y' to each side of the equation.
2.1x + -0.9y + 0.9y = 15 + 0.9y

Combine like terms: -0.9y + 0.9y = 0.0
2.1x + 0.0 = 15 + 0.9y
2.1x = 15 + 0.9y

Divide each side by '2.1'.
x = 7.142857143 + 0.4285714286y

Simplifying
x = 7.142857143 + 0.4285714286y

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