-63=21x

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Solution for -63=21x equation:


Simplifying
-63 = 21x

Solving
-63 = 21x

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.
-63 + -21x = 21x + -21x

Combine like terms: 21x + -21x = 0
-63 + -21x = 0

Add '63' to each side of the equation.
-63 + 63 + -21x = 0 + 63

Combine like terms: -63 + 63 = 0
0 + -21x = 0 + 63
-21x = 0 + 63

Combine like terms: 0 + 63 = 63
-21x = 63

Divide each side by '-21'.
x = -3

Simplifying
x = -3

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