What are possible solutions to 2x+y=-12

Step-by-step explanation:

Convert to the slope-intercept form:

y = mx + b

2x + y = -12        subtract 2x from both sides

y = -2x - 12

1. Take any value of x.

2. Put it to the equation.

3. Calculate the value of y.

Examples:

for x = 0

y = -2(0) - 12 = 0 - 12 = -12

for x = -6

y = -2(-6) - 12 = 12 - 12 = 0

for x = 2

y = -2(2) - 12 = -4 - 12 = -16

...

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm