Question
Verify by substitution that:
The root of $\frac{\text{z}}{7}=8$ is $\text{z}=56$

Answer

The given equation is $\frac{\text{z}}{7}=8$
Substituting the value of z = 56, we get
L. H. S. = $\frac{56}{7}$
= 8
= R.H.S.
Hence, it is verified that z = 56 is the root of the given equation.

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