A+2B=20
A+B=15
A=?
Ans the question to prove that you are intelligent
Answers
Answered by
5
Answer:
a = 10 is the right answer mark me brainliest plz and follow plz
Answered by
0
Answer:
10
Step-by-step explanation:
from a+2b=20
a=20-2b
put it in next equation
20-2b+b=15
20-b=15
b=5
so put this value in any of the equations
:a+b=15
=a+5=15
a=10
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