9x+21=16x

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Solution for 9x+21=16x equation:


Simplifying
9x + 21 = 16x

Reorder the terms:
21 + 9x = 16x

Solving
21 + 9x = 16x

Solving for variable 'x'.

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

Add '-16x' to each side of the equation.
21 + 9x + -16x = 16x + -16x

Combine like terms: 9x + -16x = -7x
21 + -7x = 16x + -16x

Combine like terms: 16x + -16x = 0
21 + -7x = 0

Add '-21' to each side of the equation.
21 + -21 + -7x = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -7x = 0 + -21
-7x = 0 + -21

Combine like terms: 0 + -21 = -21
-7x = -21

Divide each side by '-7'.
x = 3

Simplifying
x = 3

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