21b-32+7b-20b

Simplify combining like terms: 21b-32b+7b-20b

Solve the following subquestion: If a/b = 5/2 , find the value of (20b +7b)/(20b -7a)

If A=[[-1,2,1],[-3,2,-3]] and B=[[2,1],[-3,2],[-1,3]] , prove that (A+B^T)^T=A^T+B

If 5b=6a+16 and 9b=7b-20 , then what is the value of 3a-2b ?

If the events A and B are independent and if P(bar(A) ) = (2)/(3) , P(bar(B)) = (2)/(7) , then P(A cap B) is equal to a) 4/21 b) 3/21 c) 5/21 d) 2/21

?% of 450+46% of 285=257.1quad 21b.28c.32 d.35 e.none of these

8, 13, 21, 32, 47, 63, 83 (a) 47 (b) 63 (c) 32 (d) 83

Divide: 35 a^2+32 a-99\ b y\ 7a-9 a x^2+(b+a c)x+b c\ b y\ x+c

Let's express the following algebraic fractions in the reduced form: frac(18a^4b^5c^2)(21a^7b^2)