21x-4=9x+3

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Solution for 21x-4=9x+3 equation:


Simplifying
21x + -4 = 9x + 3

Reorder the terms:
-4 + 21x = 9x + 3

Reorder the terms:
-4 + 21x = 3 + 9x

Solving
-4 + 21x = 3 + 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.
-4 + 21x + -9x = 3 + 9x + -9x

Combine like terms: 21x + -9x = 12x
-4 + 12x = 3 + 9x + -9x

Combine like terms: 9x + -9x = 0
-4 + 12x = 3 + 0
-4 + 12x = 3

Add '4' to each side of the equation.
-4 + 4 + 12x = 3 + 4

Combine like terms: -4 + 4 = 0
0 + 12x = 3 + 4
12x = 3 + 4

Combine like terms: 3 + 4 = 7
12x = 7

Divide each side by '12'.
x = 0.5833333333

Simplifying
x = 0.5833333333

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