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3.1a=2.2-9.02
We move all terms to the left:
3.1a-(2.2-9.02)=0
We add all the numbers together, and all the variables
3.1a-(-6.82)=0
We add all the numbers together, and all the variables
3.1a+6.82=0
We move all terms containing a to the left, all other terms to the right
3.1a=-6.82
a=-6.82/3.1
a=-2+0.62/3.1
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