Question

5a+ 3b =11
-2a+3=b
What is the value of b for the solution of equations

Answer 1

Answer:

Let a =2

5(2)+3b=11

10+3b=11

3b=11-10

3b=1

b=1/3.

Now,

let a=2

-2(2)+3=b

-4+3=b

-1=b

Answer 2

Answer:

b= 7

Step-by-step explanation:

given,

5a+3b= 11 ............(1)

-2a+3= b

=> 2a+b=3

=> 6a+3b=9...........(2)

from eqns (1) and (2)

=> --a= 2 => a = -2

substituting x= -2 in (1)

=> - 10+3b= 11

=> 3b= 21

=> b= 7