0.3a+(0.2a-0,5)+0.2(a+2)=1.3

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Solution for 0.3a+(0.2a-0,5)+0.2(a+2)=1.3 equation: 



0.3a+(0.2a-0.5)+0.2(a+2)=1.3

We move all terms to the left:

0.3a+(0.2a-0.5)+0.2(a+2)-(1.3)=0

We add all the numbers together, and all the variables

0.3a+(0.2a-0.5)+0.2(a+2)-1.3=0

We multiply parentheses

0.3a+(0.2a-0.5)+0.2a+0.4-1.3=0

We get rid of parentheses

0.3a+0.2a+0.2a-0.5+0.4-1.3=0

We add all the numbers together, and all the variables

0.7a-1.4=0

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

0.7a=1.4

a=1.4/0.7

a=2

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