Step-by-step explanation:
Ok so first you have to combine the like terms.
5x-2x-3=-2+17
3x-3=15
Add 3 to each side.
3x=18
Divide 18 by 3.
x=6
Hope this helps!
Answer: 13 months.
Step-by-step explanation:
25+10+10+10+10+10+10+10+10+10+10+10+10+10= $155
Given:
A grandfather is 9 times older than his granddaughter.
In 8 years the grandfather will be 5 times older than his granddaughter.
To find:
The present age of grandfather and granddaughter.
Solution:
Let x be the present age of granddaughter.
Then, present age of grandfather = 9x
After 8 years,
Age of granddaughter = x+8
Age of grandfather = 9x+8
In 8 years the grandfather will be 5 times older than his granddaughter.
Isolate variable terms.
Divide both sides by 4.
Now,
Present age of granddaughter = 8
Present age of grandfather = 9(8) = 72
Therefore, the present age of granddaughter is 8 years and present age of grandfather is 72 years.
No because you still don't know what the value of x is.