a+4a+2=7

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Solution for a+4a+2=7 equation:



a+4a+2=7
We move all terms to the left:
a+4a+2-(7)=0
We add all the numbers together, and all the variables
5a-5=0
We move all terms containing a to the left, all other terms to the right
5a=5
a=5/5
a=1

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