4x+21=9x+1

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Solution for 4x+21=9x+1 equation:


Simplifying
4x + 21 = 9x + 1

Reorder the terms:
21 + 4x = 9x + 1

Reorder the terms:
21 + 4x = 1 + 9x

Solving
21 + 4x = 1 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
21 + 4x + -9x = 1 + 9x + -9x

Combine like terms: 4x + -9x = -5x
21 + -5x = 1 + 9x + -9x

Combine like terms: 9x + -9x = 0
21 + -5x = 1 + 0
21 + -5x = 1

Add '-21' to each side of the equation.
21 + -21 + -5x = 1 + -21

Combine like terms: 21 + -21 = 0
0 + -5x = 1 + -21
-5x = 1 + -21

Combine like terms: 1 + -21 = -20
-5x = -20

Divide each side by '-5'.
x = 4

Simplifying
x = 4

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