9x-8x=4+21

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Solution for 9x-8x=4+21 equation: 


Simplifying
9x + -8x = 4 + 21

Combine like terms: 9x + -8x = 1x
1x = 4 + 21

Combine like terms: 4 + 21 = 25
1x = 25

Solving
1x = 25

Solving for variable 'x'.

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

Divide each side by '1'.
x = 25

Simplifying
x = 25

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