100=7.4x+20.5

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Solution for 100=7.4x+20.5 equation: 



100=7.4x+20.5

We move all terms to the left:

100-(7.4x+20.5)=0

We get rid of parentheses

-7.4x-20.5+100=0

We add all the numbers together, and all the variables

-7.4x+79.5=0

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

-7.4x=-79.5

x=-79.5/-7.4

x=10+3.6666666666667/4.9333333333333

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