100(0.02+0.5a)=100(-0.3)

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Solution for 100(0.02+0.5a)=100(-0.3) equation: 



100(0.02+0.5a)=100(-0.3)

We move all terms to the left:

100(0.02+0.5a)-(100(-0.3))=0

We add all the numbers together, and all the variables

100(0.5a+0.02)-(100(-0.3))=0

We add all the numbers together, and all the variables

100(0.5a+0.02)+30=0

We multiply parentheses

0a+2+30=0

We add all the numbers together, and all the variables

a+32=0

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

a=-32

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