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2.23x+3x=-6
We move all terms to the left:
2.23x+3x-(-6)=0
We add all the numbers together, and all the variables
5.23x+6=0
We move all terms containing x to the left, all other terms to the right
5.23x=-6
x=-6/5.23
x=-1+0.77/5.23
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