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7x+4x=11x-40
We move all terms to the left:
7x+4x-(11x-40)=0
We add all the numbers together, and all the variables
11x-(11x-40)=0
We get rid of parentheses
11x-11x+40=0
We add all the numbers together, and all the variables
40!=0
There is no solution for this equation
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