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31=8a+24(-0.277)
We move all terms to the left:
31-(8a+24(-0.277))=0
We calculate terms in parentheses: -(8a+24(-0.277)), so:We get rid of parentheses
8a+24(-0.277)
We add all the numbers together, and all the variables
8a-6.648
Back to the equation:
-(8a-6.648)
-8a+6.648+31=0
We add all the numbers together, and all the variables
-8a+37.648=0
We move all terms containing a to the left, all other terms to the right
-8a=-37.648
a=-37.648/-8
a=4+3.4271844660194/4.8543689320388
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