2x-17=21

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Solution for 2x-17=21 equation: 


Simplifying
2x + -17 = 21

Reorder the terms:
-17 + 2x = 21

Solving
-17 + 2x = 21

Solving for variable 'x'.

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

Add '17' to each side of the equation.
-17 + 17 + 2x = 21 + 17

Combine like terms: -17 + 17 = 0
0 + 2x = 21 + 17
2x = 21 + 17

Combine like terms: 21 + 17 = 38
2x = 38

Divide each side by '2'.
x = 19

Simplifying
x = 19

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