2x+40=4x+100

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Solution for 2x+40=4x+100 equation: 



2x+40=4x+100

We move all terms to the left:

2x+40-(4x+100)=0

We get rid of parentheses

2x-4x-100+40=0

We add all the numbers together, and all the variables

-2x-60=0

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

-2x=60

x=60/-2

x=-30

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