Question

please solve this

note :irrevlant answer givers will all question and answer reported ..​

Answer 1

Answer:

0

Step-by-step explanation:

2lb + 7bl - (-2lb + 11bl)

Since,

According to Commutative property of multiplication that is,

a × b = ab = b × a = ba

Hence,

l × b = lb = b × l = bl

= 2lb + 7lb - (-2lb + 11lb)

= 9lb - ( 9lb )

= 9lb - 9lb

= 0 (Ans)

Thank you very, very much for the thanks and brainlest, thank you very much

Answer 2

Answer:

$21lb + - 21bl = - 42 \\ 7bl - 11bl = 4 \\ \frac{42}{2} = 21$

Hope it's help you mark in brainiest