9x-4x-4=21

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


9x-4x-4=21

We simplify the equation to the form, which is simple to understand 
9x-4x-4=21

We move all terms containing x to the left and all other terms to the right. 
+9x-4x=+21+4

We simplify left and right side of the equation. 
+5x=+25

We divide both sides of the equation by 5 to get x. 
x=5

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