18+21+17+x/4=20

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Solution for 18+21+17+x/4=20 equation: 



18+21+17+x/4=20

We move all terms to the left:

18+21+17+x/4-(20)=0

We add all the numbers together, and all the variables

x/4+36=0

We multiply all the terms by the denominator


x+36*4=0

We add all the numbers together, and all the variables

x+144=0

We move all terms containing x to the left, all other terms to the right

x=-144

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