Answer:
x = 7; y = 8; z = 5
Step-by-step explanation:
x = 15 - y
y = 13 - z
z = 12 - x
The first equation is solved for x. Substitute x in the third equation with 15 - y from the first equation.
z = 12 - (15 - y)
z = 12 - 15 + y
z = y - 3 (Equation 1)
Now substitute y - 3 for z in the original second equation.
y = 13 - z
y = 13 - (y - 3)
y = 13 - y + 3
2y = 16
y = 8
Substitute 8 for y in Equation 1.
z = y - 3
z = 8 - 3
z = 5
Substitute 5 for z in the original third equation.
5 = 12 - x
-7 = -x
x = 7
Solution: x = 7; y = 8; z = 5
Answer to this question is
12 ( 2x + y) + 13
To be a function, for any X value( input) you can only have one Y(output value).
In A) there are two x values of 2, but each one has a different Y value, so this cannot be a function.
In C, there are two x values of 1, each with a different Y value, so also cannot be a function.
D) has two X values of 0, and each has a different Y value so cannot be a function.
The correct answer would be B.
Answer:
es una fracción mixta
Step-by-step explanation:
3 2/5
