40=16-2a

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Solution for 40=16-2a equation:



40=16-2a
We move all terms to the left:
40-(16-2a)=0
We add all the numbers together, and all the variables
-(-2a+16)+40=0
We get rid of parentheses
2a-16+40=0
We add all the numbers together, and all the variables
2a+24=0
We move all terms containing a to the left, all other terms to the right
2a=-24
a=-24/2
a=-12

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