9x+16=21x+28

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Solution for 9x+16=21x+28 equation:


Simplifying
9x + 16 = 21x + 28

Reorder the terms:
16 + 9x = 21x + 28

Reorder the terms:
16 + 9x = 28 + 21x

Solving
16 + 9x = 28 + 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.
16 + 9x + -21x = 28 + 21x + -21x

Combine like terms: 9x + -21x = -12x
16 + -12x = 28 + 21x + -21x

Combine like terms: 21x + -21x = 0
16 + -12x = 28 + 0
16 + -12x = 28

Add '-16' to each side of the equation.
16 + -16 + -12x = 28 + -16

Combine like terms: 16 + -16 = 0
0 + -12x = 28 + -16
-12x = 28 + -16

Combine like terms: 28 + -16 = 12
-12x = 12

Divide each side by '-12'.
x = -1

Simplifying
x = -1

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