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8x+19=-3x-4
We move all terms to the left:
8x+19-(-3x-4)=0
We get rid of parentheses
8x+3x+4+19=0
We add all the numbers together, and all the variables
11x+23=0
We move all terms containing x to the left, all other terms to the right
11x=-23
x=-23/11
x=-2+1/11
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