Answer: 24
Step-by-step explanation:
Should be 24 if I did the math correctly, I am very sorry if it is wrong.
Answer:
the second one
Step-by-step explanation:
Answer:
x=12.5
Step-by-step explanation:
2x-25=0
Move 25 to the right with addition so you get the 2x by itself:
2x=25
Now divide the 2 to the right to get the x by itself:
x=25/2, which is the same as x=12.5
Answer:
<em>Correct choice: B</em>
Step-by-step explanation:
<u>System of non-linear equations</u>
It's given the following system of equations:


We'll use the substitution method. Substituting y from the first equation into the second equation, we have:

Moving all terms to the left side:

Simplifying:

Factoring:

There are two solutions:
x=-4, x=2
The first solution gives a value for y:
y=-4+13=9
First solution: (-4,9)
The second solution gives a value for y:
y=2+13=15
Second solution: (2,15)
Correct choice: B