3a-5-a=-15

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Solution for 3a-5-a=-15 equation:



3a-5-a=-15
We move all terms to the left:
3a-5-a-(-15)=0
We add all the numbers together, and all the variables
2a+10=0
We move all terms containing a to the left, all other terms to the right
2a=-10
a=-10/2
a=-5

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