-20a-15a=-15

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Solution for -20a-15a=-15 equation:



-20a-15a=-15
We move all terms to the left:
-20a-15a-(-15)=0
We add all the numbers together, and all the variables
-35a+15=0
We move all terms containing a to the left, all other terms to the right
-35a=-15
a=-15/-35
a=3/7

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