Question

a number is subtracted from 2/5 and the difference is multiplied by 20 the result is -16 find the number

Answer 1

x
$(x - 2 \div 5)20 = - 16 \\ \\ 20x - 40 \div 5 = - 16 \\ 20x = - 16 + 8 \\ 20x = - 8 \\ x = - 8 \div 20 = - 2 \div 5$
this is the answer I think

Answer 2

Answer:

x

(x−2÷5)20=−1620x−40÷5=−1620x=−16+820x=−8x=−8÷20=−2÷5\begin{lgathered}(x - 2 \div 5)20 = - 16 \\ \\ 20x - 40 \div 5 = - 16 \\ 20x = - 16 + 8 \\ 20x = - 8 \\ x = - 8 \div 20 = - 2 \div 5\end{lgathered}

(x−2÷5)20=−16

20x−40÷5=−16

20x=−16+8

20x=−8

x=−8÷20=−2÷5