I think of 2 numbers. If I add 3 times the smaller number
to the bigger number I get 14. If I subtract the bigger
number from twice the smaller number I get 1.
Find the two numbers.Let S = the smaller number
Let B = the bigger number
So the problem is now:
I think of 2 numbers, S and B. If I add 3 times S to B,
I get 14. If I subtract B from twice S, I get 1.
Find the two numbers.If I add 3 times S to B, I get 14.
[Think of how you would write them down to add them if you knew
what they were):
B
+3S
14
So from that we have this equation:
B+3S = 14
If I subtract B from twice S, I get 1.
[Think of how you would write them down to subtract them if you
knew what they were):
2S
-B
1
So from that we have this equation:
2S-B = 1
Solve the system by either substitution or elimination:
Edwin