10x=100 because tbh if you Calculate 5x-10=40 it’s give you your answer and go off of that.
Answer:
2
Step-by-step explanation:
The answer is 2, because there's comparison of the options of ways to buy books.
22:6 is one of them. Do you need more than one?
Answer:
y=2x+6 ; x+y=51
Step-by-step explanation:
assuming x is one number and y is the other -
one number (y) is 6 more (+6) than twice another (2x) -
using that knowledge we form an equation -
y=2x+6
the sum (x+y) is 51
using this knowledge we can make the equation -
x+y=51
now you have -
y=2x+6 or 2x-y=-6
x+y=51
using system of equations -
you add the equations -
3x=45
x=15
y=51-x => y=36
hope this helps!!