substitute x for y-1
2(y-1)-y=6 distribute
2y-2-y=6 subtract y in 2y
y-2=6 add 2 to get y by itself
y=8
Put y back into equation x=y-1
x=8-1
X=7
.05n + $28 = $50.50
(.05n = $22.50)100
5n = 2250
n= 450 calls
Answer:
1. y= 2x-5
2. y= x+3
3. y=2x+7
Step-by-step explanation:
