8-0.2(10-a)+1.8a=7

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Solution for 8-0.2(10-a)+1.8a=7 equation: 



8-0.2(10-a)+1.8a=7

We move all terms to the left:

8-0.2(10-a)+1.8a-(7)=0

We add all the numbers together, and all the variables

-0.2(-1a+10)+1.8a+8-7=0

We add all the numbers together, and all the variables

1.8a-0.2(-1a+10)+1=0

We multiply parentheses

1.8a+0.2a-2+1=0

We add all the numbers together, and all the variables

2a-1=0

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

2a=1

a=1/2

a=1/2

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