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135=176-0.8a
We move all terms to the left:
135-(176-0.8a)=0
We add all the numbers together, and all the variables
-(-0.8a+176)+135=0
We get rid of parentheses
0.8a-176+135=0
We add all the numbers together, and all the variables
0.8a-41=0
We move all terms containing a to the left, all other terms to the right
0.8a=41
a=41/0.8
a=51+0.2/0.8
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