4.2x-1.4y=21

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Solution for 4.2x-1.4y=21 equation: 


Simplifying
4.2x + -1.4y = 21

Solving
4.2x + -1.4y = 21

Solving for variable 'x'.

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

Add '1.4y' to each side of the equation.
4.2x + -1.4y + 1.4y = 21 + 1.4y

Combine like terms: -1.4y + 1.4y = 0.0
4.2x + 0.0 = 21 + 1.4y
4.2x = 21 + 1.4y

Divide each side by '4.2'.
x = 5 + 0.3333333333y

Simplifying
x = 5 + 0.3333333333y

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