
Distribute 3 throught the parentheses

Move the variable to the left-hand side and change its sign

Move the constant to the right-hand side and change its sign

Collect like terms

Divide both sides of the equation by -3

X: -2| -1| 0| 1| 2|
y: 1.25| 2.5| 5| 10| 20|
Answer:
B .`-(1)/(8) stackrel(+)(-) (isqrt(79))/(8)`
You just need to do cross multiplication.
If 3 cartoons cost 4.77 then 8 cost...
8×4.77÷3=$12.72 done!