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7x-15=3x-11+4x
We move all terms to the left:
7x-15-(3x-11+4x)=0
We add all the numbers together, and all the variables
7x-(7x-11)-15=0
We get rid of parentheses
7x-7x+11-15=0
We add all the numbers together, and all the variables
-4!=0
There is no solution for this equation
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