Question

Find the unknown using an inverse operation:
$y-1.3=2.6$

Answer 1

$y-\frac{13}{10}=\frac{26}{10}$

$[\therefore 1.3=\frac{13}{10}$ & $2.6=\frac{20}{10}]$

( Also, taking the inverse of | ie| $4$ multiplying both sides, we get)

$y=\frac{26}{10}+\frac{13}{10}=\frac{26+13}{10}=\frac{39}{10}=3.9$

$y=3.9$