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2.8=z+.5
We simplify the equation to the form, which is simple to understand
2.8=z+.5
We move all terms containing z to the left and all other terms to the right.
-1z=0.5-2.8
We simplify left and right side of the equation.
-1z=-2.3
We divide both sides of the equation by -01 to get z.
z=2.3
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