Question

1. Solve : 2y + 9 = 4​

Answer 1

Answer:

$2y + 9 = 4 \\ = > 2y = 4 - 9 \\ = > y = \frac{ - 5}{2} \\ = > y = - 2.5$

Answer 2

$2y = 4 - 5 \\ \\ 2y = - 5 \\ \\ y = \frac{5}{2} \\ \\ to \: check \: the \: answer \:left \: hand \: side = 2 \frac{ - 5}{2} + 9 = - 5 + 9 = 4 = right \: hand \: side$