Answer:
x = 
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
128=12(8+x)
128=(12)(8)+(12)(x)(Distribute)
128=96+12x
128=12x+96
Step 2: Flip the equation.
12x+96=128
Step 3: Subtract 96 from both sides.
12x+96−96=128−96
12x=32
Step 4: Divide both sides by 12.

x=8/3
First, find the base rate of both of the numerals, to do this simply divide the price by the number of units.
12.95 divided by 3 is 4.32 ( rounded to nearest cent )
21.45 divided by 5 is 4.29 ( rounded to nearest cent )
So, if you want the better deal ( which is what I've interpreted ), then 5 pounds of nuts is the better deal <u>BY</u> 3 cents.
Hope this helps, if not, comment below please!!!!
Do you mean 5+7?
If so, that equals 12!
I may help you, do you have discord? it would be better if we move it there, my user is ri#0511
The number could be anything because whatever it is it can be quadrupled