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7a-0.5+7=5a+2.3
We move all terms to the left:
7a-0.5+7-(5a+2.3)=0
We add all the numbers together, and all the variables
7a-(5a+2.3)+6.5=0
We get rid of parentheses
7a-5a-2.3+6.5=0
We add all the numbers together, and all the variables
2a+4.2=0
We move all terms containing a to the left, all other terms to the right
2a=-4.2
a=-4.2/2
a=-2+0.2/2
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