Answer:
D - x = 19 x = -17
Step-by-step explanation:
Factor the equation to make the problem easier - you should have this:
(x - 18) (x + 18) = 1
Set each binomial to 1:
x - 18 = 1
x + 18 = 1
This should give you x = 19 and x = -17
He has to be 5 since 5×3=15 and each year he turns one year older so yea
Answer:
you need a photo or the answer written down
Step-by-step explanation:
-25/8, -(6/6), 0/7, 2 2/3
rearranging the second equation we get
3x - 7y = 21.............(1)
6x - 14y = 42..........(2)
Note that if we multiply equation (1) by 2 we get equation (2) So they are the same equation.
Therefore there are an infinite number of solutions to this system
