29. If (x, 5) is a solution to the equation 3x + 5y = -5, what is the value of x? A.-10
B.-4
C. 2
D. 6​

the answer is -10

Step-by-step explanation:

x=x

y=5

then

3x+5y=-5

3x+5*5=-5

3x=-5-25

3x=-30

x=-30/3

•°•x=-10

A

Step-by-step explanation:

3x+5*5=-5

x=-10

i believe the correct answer is b.

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.