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z/5-7=31/4
We simplify the equation to the form, which is simple to understand
z/5-7=31/4
We move all terms containing z to the left and all other terms to the right.
+ 0.2z=+7.75+7
We simplify left and right side of the equation.
+ 0.2z=+14.75
We divide both sides of the equation by 0.2 to get z.
z=73.75
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