Question

( 5/7 - x ) x 4/15 = 7/10 + 1/2

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Answer 1

\(\left(\frac{5}{7}-x\right)\times\frac{4}{15}=\frac{7}{10}+\frac{1}{2}\)

\(\left(\frac{5}{7}-x\right)\times\frac{4}{15}=\frac{6}{5}\)

                 \(\frac{5}{7}-x=\frac{6}{5}:\frac{4}{15}\)

                 \(\frac{5}{7}-x=\frac{9}{2}\)

                            \(x=\frac{5}{7}-\frac{9}{2}\)

                           \(x=-\frac{53}{14}\)

Answer 2

(5/7-x) *4/15=7/10+1/2

(5/7-x) *4/15=6/5

(5/7-x) =6/5 :4/15

(5/7-x) =9/2

x         =9/2 +5/7

x          =73/14