If 4p + 3q + 2r = 3 and -4p - 2q - 2r = 4, then q = ? (A) 0
(B) 2
(C) 3
(D) 4
(E) 7

E

Step-by-step explanation:

Label the two equations:

4p +3q +2r= 3 (1)

-4p -2q -2r= 4 (2)

(1) +(2):

4p +3q +2r -4p -2q -2r= 3 +4

Grouping like terms together:

4p -4p +3q -2q +2r -2r= 7

Simplify:

q= 7

12cm

the answer is d

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8