21x=17x-20

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Solution for 21x=17x-20 equation:


21x=17x-20

We simplify the equation to the form, which is simple to understand 
21x=17x-20

We move all terms containing x to the left and all other terms to the right. 
+21x-17x=-20

We simplify left and right side of the equation. 
+4x=-20

We divide both sides of the equation by 4 to get x. 
x=-5

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