-16-3x=x+21

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Solution for -16-3x=x+21 equation:


Simplifying
-16 + -3x = x + 21

Reorder the terms:
-16 + -3x = 21 + x

Solving
-16 + -3x = 21 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-16 + -3x + -1x = 21 + x + -1x

Combine like terms: -3x + -1x = -4x
-16 + -4x = 21 + x + -1x

Combine like terms: x + -1x = 0
-16 + -4x = 21 + 0
-16 + -4x = 21

Add '16' to each side of the equation.
-16 + 16 + -4x = 21 + 16

Combine like terms: -16 + 16 = 0
0 + -4x = 21 + 16
-4x = 21 + 16

Combine like terms: 21 + 16 = 37
-4x = 37

Divide each side by '-4'.
x = -9.25

Simplifying
x = -9.25

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