-3(7x+y)=10

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Solution for -3(7x+y)=10 equation: 


Simplifying
-3(7x + y) = 10
(7x * -3 + y * -3) = 10
(-21x + -3y) = 10

Solving
-21x + -3y = 10

Solving for variable 'x'.

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

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

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

Divide each side by '-21'.
x = -0.4761904762 + -0.1428571429y

Simplifying
x = -0.4761904762 + -0.1428571429y

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