Y=5x+10 y=2x+7
please hurry

one solution : (-1 ; 5)

Step-by-step explanation:

hello :

the system is :  Y=5x+10

                         y=2x+7

so 5x+10 = 2x + 7

3x = -3

x= -3/3 = - 1

but : y= 2x+7

so : y = 2(-1)+7= 5

one solution : (-1 ; 5)

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

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.