X+y=3
8x+y=-4
system of equation by graphing

x=-1, y=4. (-1, 4).

Step-by-step explanation:

x+y=3

8x+y=-4

y=3-x

8x+(3-x)=-4

8x+3-x=-4

7x+3=-4

7x=-4-3

7x=-7

x=-7/7=-1

-1+y=3

y=3-(-1)=3+1=4

x=-1, y=4. (-1, 4).

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.