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3.9x+7=-22.6
We move all terms to the left:
3.9x+7-(-22.6)=0
We add all the numbers together, and all the variables
3.9x+29.6=0
We move all terms containing x to the left, all other terms to the right
3.9x=-29.6
x=-29.6/3.9
x=-7+2.3/3.9
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