Hi there!
To solve this using substitution, we substitute the value of y in the equation.
5x + 8 = 8x + 9
Now, we simplify.
8 = 3x + 9
-1 = 3x
x = -1/3
We plug the value of x in,
y = 5 (-1/3) + 8
y = -1 2/3 + 8
y = 6 1/3
Hope this helps!
Answer:
10 scarves
Step-by-step explanation:
each scarf is $15, 10 of them is 150 because 10 x 15 = 150
You will subtract 12 from 260 and get 248 then you will divide 248 by 8 and get 31 dollars spent per book.
The origin being O, the three axes are:
OX , OY and OZ
W = -4 or more because -4 times 5 equals -20.