5a+40=a+100

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Solution for 5a+40=a+100 equation: 



5a+40=a+100

We move all terms to the left:

5a+40-(a+100)=0

We get rid of parentheses

5a-a-100+40=0

We add all the numbers together, and all the variables

4a-60=0

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

4a=60

a=60/4

a=15

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