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1x+3=1x+15=90
We move all terms to the left:
1x+3-(1x+15)=0
We add all the numbers together, and all the variables
1x-(x+15)+3=0
We add all the numbers together, and all the variables
x-(x+15)+3=0
We get rid of parentheses
x-x-15+3=0
We add all the numbers together, and all the variables
-12!=0
There is no solution for this equation
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