Answer:
x=1
Step-by-step explanation:
(7x-1)+(2x-1)=7
7x+2x-1-1=7
7x+2x=7+1+1
9x=9
9x/9 = 9/9
x=1
Answer:
Its cost about 1.5625
if you rounded its 1.56 :)
Step-by-step explanation:
I am going to do number 2 so when you subtract decimals you have to add two zeros like this 10.00 or 0.25 so now when you subtract you get $9.75
D/H = 0.25
18/H = 0.25/1
Cross multiply and solve for H
