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4+3.7x=10.5x+4.2x
We move all terms to the left:
4+3.7x-(10.5x+4.2x)=0
We add all the numbers together, and all the variables
3.7x-(+14.7x)+4=0
We get rid of parentheses
3.7x-14.7x+4=0
We add all the numbers together, and all the variables
-11x+4=0
We move all terms containing x to the left, all other terms to the right
-11x=-4
x=-4/-11
x=4/11
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