21x+7-25x=4-9

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Solution for 21x+7-25x=4-9 equation:


21x+7-25x=4-9

We simplify the equation to the form, which is simple to understand 
21x+7-25x=4-9

We move all terms containing x to the left and all other terms to the right. 
+21x-25x=+4-9-7

We simplify left and right side of the equation. 
-4x=-12

We divide both sides of the equation by -4 to get x. 
x=3

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