You would move you positive 3 to the left side so (y) is by itself. So you would have 3x-8=y. Then substitute X=5. So 3(5)-8=y. 15-8=y. 7=y
I hope this helps!!
9x^2+2x+8
Answer:
second one
Step-by-step explanation:
L - Lane's age
m- Mel's age.
Lane is 10 times Mel's age, so 10m = l
difference in their age is 27 so l - m = 27
Substitute l = 10m and you'll have:
10m - m = 27
9m = 27 /:9
m=3
And l = 10m = 10*3 = 30
So Lane has 3 years old and Mel has 30 years old.
<span>(2 sqrt27)*(3 sqrt32)
={2 sqrt(9*3)}*{3 sqrt(16*2)}
=(6sqrt3)*(12sqrt2)
=72 sqrt6
Hope this helps</span>