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0.25(a+3)=0.5
We move all terms to the left:
0.25(a+3)-(0.5)=0
We add all the numbers together, and all the variables
0.25(a+3)-0.5=0
We multiply parentheses
0.25a+0.75-0.5=0
We add all the numbers together, and all the variables
0.25a+0.25=0
We move all terms containing a to the left, all other terms to the right
0.25a=-0.25
a=-0.25/0.25
a=-1
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