Question

If a= 4 - b
2a + b = 1

solve in substitution method ​

Answer 1

Answer:

hence, b=7

Step-by-step explanation:

2a+b=1...(i)

by subtituting the value of a=4-b in eqn.(i) we get

2(4-b)+b=1

8-2b+b=1

8-b=1

b=7