3a+1.5+2a+3.5=90+2.5a-5

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Solution for 3a+1.5+2a+3.5=90+2.5a-5 equation: 



3a+1.5+2a+3.5=90+2.5a-5

We move all terms to the left:

3a+1.5+2a+3.5-(90+2.5a-5)=0

We add all the numbers together, and all the variables

3a+2a-(2.5a+85)+1.5+3.5=0

We add all the numbers together, and all the variables

5a-(2.5a+85)+5=0

We get rid of parentheses

5a-2.5a-85+5=0

We add all the numbers together, and all the variables

2.5a-80=0

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

2.5a=80

a=80/2.5

a=32

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