10.5a+9.5a=15a-10

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Solution for 10.5a+9.5a=15a-10 equation: 



10.5a+9.5a=15a-10

We move all terms to the left:

10.5a+9.5a-(15a-10)=0

We add all the numbers together, and all the variables

20a-(15a-10)=0

We get rid of parentheses

20a-15a+10=0

We add all the numbers together, and all the variables

5a+10=0

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

5a=-10

a=-10/5

a=-2

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