15=-3y+21x

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Solution for 15=-3y+21x equation:


Simplifying
15 = -3y + 21x

Reorder the terms:
15 = 21x + -3y

Solving
15 = 21x + -3y

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
15 + -21x = 21x + -21x + -3y

Combine like terms: 21x + -21x = 0
15 + -21x = 0 + -3y
15 + -21x = -3y

Add '-15' to each side of the equation.
15 + -15 + -21x = -15 + -3y

Combine like terms: 15 + -15 = 0
0 + -21x = -15 + -3y
-21x = -15 + -3y

Divide each side by '-21'.
x = 0.7142857143 + 0.1428571429y

Simplifying
x = 0.7142857143 + 0.1428571429y

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