3a+4a=7

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Solution for 3a+4a=7 equation:



3a+4a=7
We move all terms to the left:
3a+4a-(7)=0
We add all the numbers together, and all the variables
7a-7=0
We move all terms containing a to the left, all other terms to the right
7a=7
a=7/7
a=1

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