2x-7y=-21

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Solution for 2x-7y=-21 equation: 


Simplifying
2x + -7y = -21

Solving
2x + -7y = -21

Solving for variable 'x'.

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

Add '7y' to each side of the equation.
2x + -7y + 7y = -21 + 7y

Combine like terms: -7y + 7y = 0
2x + 0 = -21 + 7y
2x = -21 + 7y

Divide each side by '2'.
x = -10.5 + 3.5y

Simplifying
x = -10.5 + 3.5y

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