Step-by-step explanation:
=(g-f)(n)
=4n+7-2n-3
=2n+4
Answer:
Choose 1 answer = 4
Is a
For the last one I’m not so very sure, hope I helped a bit tho.
Step-by-step explanation:
Answer:
y = 4
x = -16
Step-by-step explanation:
this time we should multiply the first equation with -1 because we only need to change its state of negativity
2x + y = -28
-2x - 2y = 24 ➡ -y = -4 ➡ y = 4
if 2x + y = -28 the 2x + 4 =-28 ➡ 2x = -32 x = -16
She will need 8 more barbies, to reach a total of 12.
Hope this helps!