What is the value of x in the solutions to following equations

Question

x - y + -3
x + 3y =5

Answer 1

subtract the second equation from the first.
-y-3y=-3-5
-4y=-8
y=2, put that back in the first equation, and solve for x

Answer 2

the first set of equations instead of a plus sign its supposed to be an equal sign.. and btw is it

x=-1

Answer 3

yes, you have it.

Answer 4

thx so much

Heidi is preparing for the national gymnastics competition. The table below shows the number of hours Heidi spent preparing for a gymnatics competition over a period of five months:

Month
1

2

3

4

5
Hours
2

3.5

5

6.5

8

Did Heidi increase the number of hours of practice linearly or exponentially?

Linearly, because the table shows an equal increase in hours for an equal increase in months

Exponentially, because the table shows an equal increase in hours for an equal increase in months

Linearly, because the table shows that hours increase by an equal factor for an equal increase in months

Exponentially, because the table shows that hours increase by an equal factor for an equal increase in months

is it a

Answer 5

yea