21x-9=3x+17

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Solution for 21x-9=3x+17 equation:


Simplifying
21x + -9 = 3x + 17

Reorder the terms:
-9 + 21x = 3x + 17

Reorder the terms:
-9 + 21x = 17 + 3x

Solving
-9 + 21x = 17 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-9 + 21x + -3x = 17 + 3x + -3x

Combine like terms: 21x + -3x = 18x
-9 + 18x = 17 + 3x + -3x

Combine like terms: 3x + -3x = 0
-9 + 18x = 17 + 0
-9 + 18x = 17

Add '9' to each side of the equation.
-9 + 9 + 18x = 17 + 9

Combine like terms: -9 + 9 = 0
0 + 18x = 17 + 9
18x = 17 + 9

Combine like terms: 17 + 9 = 26
18x = 26

Divide each side by '18'.
x = 1.444444444

Simplifying
x = 1.444444444

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