Question

Simplify combining like terms:

(i) 21b - 32 + 7b - 20b​

Answer 1

$\sf \red{ \underline{Given:-}}$

$\sf \orange{21b - 32 + 7b - 20b}$

$\red{\bigstar \large\underline{\boxed{\bf\pink{Solution:-}}}}$

$\sf \green{(21b + 7b - 20b) - 32}$

$\sf \purple{(28b - 20b)}$

$\sf {\boxed{\sf\pink{8b - 32}}}$

Answer 2

Answer in the attachment.