You need to put the x or y value in the other equation ;
For example excersize a
It given that
Y=x^2+3x-1
Then you put it on the first equation :
x+x^2+3x-1=4
And then you solve it
x+x^2+3x-1-4=0
4x+x^2-5=0
We will make the order to seem easier
x^2+4x-5=0
x1=-5
x2=1
Then you put the x1,2 that you found on the second equation :
y=(-5)^2+3*(-5)-1=9
y=1^2+3*1-1=3
For summary :
x1=-5
x2=1
y1=9
y2=3
Answer:
False
Step-by-step explanation:
The coefficients (numbers in front) don't matter, but the exponents do.
Like terms have exactly the same exponents on the same variables.
are not like terms.
Example: 
<u>are</u> like terms--same exponents on the x's, same exponents on the y's.
It’s basically a 100% chance that the oceans will disappear in a few billion years, but according to some sources, most sealife (95%+) may be wiped out by the year 2100.
840,000. Also, you shouldn't be relying on this site - there are a lot of posts from you in the last couple of minutes. Find out why that's the answer so you can do it yourself!
3v=24
Simply divide 3 on both sides
Final Answer: v= 8
