Question 1178319: . The sum of two numbers is 15. If twice the first number is added to thrice the second
number their sum would be 35. What are the numbers? Found 2 solutions by josgarithmetic, Veektor:Answer by josgarithmetic(39617) (Show Source):
You can put this solution on YOUR website! say a+b= 15
Then the sum of twice the first and thrice the second is 35
So, 2a+3b= 35
We have;
a+b=15 ---i
2a+3b=35 ---ii
Then a=15-b ---iii
Input a into eqn ii
2(15-b)+3b= 35
30-2b+3b= 35
Collect like terms
-2b+3b=35-30
b=5.
Input b into eqn i
a+5=15
a=15-5
a=10. a=10, b=5.