Answer:
2)
a. x= -84
b. x= 9/4 or 2.25 in decimal form
c. x= 53/5 or 10.6 in decimal form
d. x= 31/2 or 15.5 in decimal form
3)
a. y= -10
b. y= -28
c. y= -114
d. y= 68
Step-by-step explanation:
2) substitute y as 7
a. y= x+91
7=x+91
7-91=x
-84=x
x= -84
——————
b. y= 4x-2
7=4x-2
7+2=4x
9=4x
9/4=x
x=9/4 or 2.25
————————
c. y= 5x-46
7= 5x-46
7+46=5x
53=5x
53/5=x
x=53/5 or 10.6
—————————
d. y= 6x-86
7= 6x-86
7+86=6x
93=6x
93/6=x
31/2=x
x= 31/2 or 15.5
—————————
3) substitute x as 13
a. y= -x+3
y= -13+3
y= -10
——————
b. y= -2x-2
y= -2(13)-2
y= -26-2
y=-28
——————
c. y= -3x-75
y= -3(13)-75
y= -36-75
y= -114
——————
d. y= 8x-36
y= 104-36
y= 68
hope that helped you. cymath can also help you
