Question 1051570
The sum of two numbers is 18.
 a + b = 18
 Twice the smaller number decreased by three equals the larger number.
a = 2b - 3
 What are the two numbers?
:
In the first equation, replace a with(2b-3)
2b-3  + b = 18
3b = 18 + 3
3b = 21
b = 7
:
:
You can find a