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0.3x+0.5=-0.57
We move all terms to the left:
0.3x+0.5-(-0.57)=0
We add all the numbers together, and all the variables
0.3x+1.07=0
We move all terms containing x to the left, all other terms to the right
0.3x=-1.07
x=-1.07/0.3
x=-3+0.17/0.3
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