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4=z/7.8
We simplify the equation to the form, which is simple to understand
4=z/7.8
Simplifying:
4=0.128205128205z
We move all terms containing z to the left and all other terms to the right.
-0.128205128205z=-4
We simplify left and right side of the equation.
-0.128205128205z=-4
We divide both sides of the equation by -00.128205128205 to get z.
z=31.2
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