Answer:
I think it is 123 for number 9 i can't see, the other problems
Step-by-step explanation:
Answer:
mean:12
Step-by-step explanation:
The first equation, make the y as the subject. y = 3 + 5x, then substitute y in the second equation and you will get the value of x. then, substitute the x in the first equation (y = 3 + 5x)
