Question

simplify to 21 b - 32 + 8 b - 20 b​

Answer 1

$\large\sf \green{Given :-}$

$\sf \red{21 b - 32 + 8 b - 20 b}$

$\large \sf { \underline\orange{Solution:-}}$

$\sf \: 21 b - 32 + 8 b - 20 b$

$\sf \mapsto \: 21b + 8b - 20b - 32$

$\sf \mapsto \: 29b - 20b - 32$

$\red{ \boxed { \sf{ \mapsto \: 9b - 32}}}$

$\color{skyblue}{ \underline{ \boxed{ \bf{ \therefore \: The \: answer \: of \: given \: equation \: is \: 9b - 32}}}}$

Answer 2

$\huge \red{An} \green{s} \pink{we} \purple{r:}$

• 21b - 32 + 8b - 20b

⟹ 21b + 8b - 20b -32

⟹ b( 21 + 8 - 20) - 32

⟹ b( 29 - 20) - 32

⟹ 9b -32