Question

2 by 5 Z equal to 3 by 8z + 7 by 20

Answer 1

the question is a simple fractions based algebraic problem...

$\frac{2}{5}Z=\frac{3}{8}Z+\frac{7}{20}\\\\\frac{2}{5}Z-\frac{3}{8}Z=\frac{7}{20}\\\\(\frac{2}{5}-\frac{3}{8})*Z=\frac{7}{20}\\\\\frac{2*8-3*5}{40}*Z=\frac{7}{20}\\\\Z=\frac{7}{20}*\frac{40}{1}=14$

Answer is z = 14.

Answer 2

2/5 Z = 3/8 Z + 7/20

2/5 -3/8 Z =7/20

16-15/8 Z =7/20

1/40 Z =7/20

Z = 7/20*40 =14

Hence, Value of Z = 14