91=1/2*7(x+20)

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Solution for 91=1/2*7(x+20) equation: 



91=1/2*7(x+20)

We move all terms to the left:

91-(1/2*7(x+20))=0



Domain of the equation: 2*7(x+20))!=0

x∈R



We multiply all the terms by the denominator


-(1+91*2*7(x+20))=0



We calculate terms in parentheses: -(1+91*2*7(x+20)), so:

1+91*2*7(x+20)

determiningTheFunctionDomain
91*2*7(x+20)+1

Wy multiply elements

1274x*7+1

Wy multiply elements

8918x+1

Back to the equation:

-(8918x+1)



We get rid of parentheses

-8918x-1=0

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

-8918x=1

x=1/-8918

x=-1/8918

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