Answer:
Step-by-step explanation:
Equation 2x+15=x+15
x=2x+x ST = 15+15 = 30
40 times x = the number of pages she read in x nights
Answer:
10 months
Step-by-step explanation:
22x+80=30x
subtract both sides by 30x
-8x+80=0
then subtract 80 from both sides
−8x=−80
divide both sides by -8
x=10