9x+16=4x+21

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Solution for 9x+16=4x+21 equation:


Simplifying
9x + 16 = 4x + 21

Reorder the terms:
16 + 9x = 4x + 21

Reorder the terms:
16 + 9x = 21 + 4x

Solving
16 + 9x = 21 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
16 + 9x + -4x = 21 + 4x + -4x

Combine like terms: 9x + -4x = 5x
16 + 5x = 21 + 4x + -4x

Combine like terms: 4x + -4x = 0
16 + 5x = 21 + 0
16 + 5x = 21

Add '-16' to each side of the equation.
16 + -16 + 5x = 21 + -16

Combine like terms: 16 + -16 = 0
0 + 5x = 21 + -16
5x = 21 + -16

Combine like terms: 21 + -16 = 5
5x = 5

Divide each side by '5'.
x = 1

Simplifying
x = 1

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