Answer:
x=-2
Step-by-step explanation:
It is a straight line when x=-2 :)
We can set up a system of equations:
x + y = 12
x - y = 4
Adding these two together:
2x = 16
x = 8
Substituting 8 in the first equation:
8 + y = 12
y = 4
Hope this helps!
Answer:
Plz see the answer behind it.
Step-by-step explanation:
Hope it helps uh
If you get confuse you can ask me .........
Answer: 
Step-by-step explanation:
By definition, the equation of the line in slope-intercept form of is:

Where m is the slope and b is the y-intercept.
Then, given the slope 2/5 and the point, (-10, -5), you can calculate the value of b by susbtituting and solve for it:

Substitute this value and the slope into the equation. THerefore, you obtain:

C, 125. Hope I helped.
btw, u gotta do 35+30+25+20+15