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-.5x+4.2=1.6
We simplify the equation to the form, which is simple to understand
-.5x+4.2=1.6
We move all terms containing x to the left and all other terms to the right.
-0.5x=+1.6-4.2
We simplify left and right side of the equation.
-0.5x=-2.6
We divide both sides of the equation by -0.5 to get x.
x=5.2
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