Answer:
answer is the second one
Step-by-step explanation:
every value of x is either x or lower
e.g (-5, -4)
(5, 2)
Answer: This is what Khan Academy said the answer was
Y - x = 9
12 = 1/3x
The first thing you want to do when solving a system of equations is isolating one of the variables.
Since the second equation only contains x, we can isolate x in the first equation.
y - x = 9
y = x + 9
x = y - 9
You can also solve the second equation without any previous solving.
12 = 1/3x
Multiple both sides by 3/1 or 3
x = 36
Now we can set them equal to each other
36 = y - 9
y = 45
Answer: x = 36 and y = 45
The value for the expression is Z equals three
Answer:

Step-by-step explanation:
From the given equation:

As a single equation, we have:

open brackets

