2x+y=-5;3x+2y=-8 in substitution method​

x = -2

y = -1

Step-by-step explanation:

2x+y = -5     so    y = -5-2x

3x+2y = -8

substitute for y

3x+2(-5-2x) = -8

3x-10-4x = -8

-10-x = -8

add 10 to both sides

-10+10-x = -8+10

-x = 2

divide both sides by -1

-x/-1 = 2/-1

x = -2

y = -5-2(-2)

y = -5+4

y = -1

answer: i think one of the answer is $150 and $300?

step-by-step explanation:

easy its decreasing

step-by-step explanation:

because its top point is at the to of the graph on the left side (atleast from the veiw i see it) now if that top point wast in the lower part of the graph it would be increasing hope this have a nice day