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9.9x+8-3.9x=2
We simplify the equation to the form, which is simple to understand
9.9x+8-3.9x=2
We move all terms containing x to the left and all other terms to the right.
+9.9x-3.9x=+2-8
We simplify left and right side of the equation.
+6x=-6
We divide both sides of the equation by 6 to get x.
x=-1
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