Question

Can someone please help me with math questions?

Answer 1

The answer is 5. x^2=25... just kidding, what is the question?

Answer 2

lol

Answer 3

Solve the system of equations and choose the correct answer from the list of options:

x+y=-3
y=2x+2

1. 5/3, 4/3
2. -5/3, -4/3
3. -3/5, -3/4
4. 3/4, 3/5


This is just really hard to do! I'm not really looking for the answer as much as I'm looking for help.

Answer 4

so x and y = -3

Answer 5

y is (double x) +2

Answer 6

Usually I solve for one variable for the first equation and the substitute that value in the second and solve for the second variable.

For x+y=-3
x=-y-3

substitute into the second equation
y=2x+2 = 2(-y-3)+2=-2y-6+2=-2y-4
y+2y=-3y=-4
y=-4/3

substituting back into the value of x in terms of y
x=-y-3=-(-4/3)-3=4/3 -3=4/3- 9/3=-5/3

testing
x+y=(-5/3)+(-4/3)=-9/3=-3

y=2x+2=2(-5/3)+2=-10/3+6/3=-4/3

so we are good x=-5/3 and y=-4/3

Answer 7

Thank you! Is it alright if I ask another one?

Answer 8

I am sure it is, someone will answer it. :)