Answer:
(4, 1)
Step-by-step explanation:
3x+4y=16 /*4
-4x-3y= - 19 /*3
12x + 16y = 64
<u>- 12x - 9y = - 57 </u>
7y = 7
y = 1
3x+4y=16
3x + 4*1 = 16
3x = 16 - 4
3x = 12
x = 4
No, 21 is a multiple of 7
Answer:
first one is c second one is c and a
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Can't have 0 in the denominator