9x-10=5x+38
4x=48
X=12
So 9x-10=9(12)-10=108-10=98 degrees
And 5x+38=5(12)+38=60+38=98 degrees
If we answer all of them do we get 50 points?
Answer:
5 weeks.
Step-by-step explanation:
We have $60, and we're saving an additional $5 each week:
Our brother has $45, and is saving an additional $8 each week:
Let's set up an equation:
We had to set these two expressions equal to each other because our end result should be equal.
Subtract from both sides of the equation:
Subtract from both sides of the equation:
Divide by the coefficient of , which is :
Check your work:
You can check your work with substitution. Take the initial equation and substitute with :
Simplify:
It checks out!