3x+10y=-21

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Solution for 3x+10y=-21 equation: 


Simplifying
3x + 10y = -21

Solving
3x + 10y = -21

Solving for variable 'x'.

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

Add '-10y' to each side of the equation.
3x + 10y + -10y = -21 + -10y

Combine like terms: 10y + -10y = 0
3x + 0 = -21 + -10y
3x = -21 + -10y

Divide each side by '3'.
x = -7 + -3.333333333y

Simplifying
x = -7 + -3.333333333y

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