Question

3a+b=225, b-a=25 solve.

Answer 1

If you are solving by substituting A=50 and B=75

Answer 2

Answer : The value of 'a' and 'b' is, 50 and 75 respectively.

Step-by-step explanation :

As we are given two equations.

`3a+b=225` ...........(1)

`b-a=25` ............(2)

or,

`b=25+a` ...........(3)

Now put equation 3 in equation 1, we get the value of 'a'.

`3a+b=225`

`3a+25+a=225`

`4a+25=225`

`4a=225-25`

`4a=200`

`a=(200)/(4)`

`a=50`

Now put the value of 'a' in equation 3, we get the value of 'b'.

`b=25+a`

`b=25+50`

`b=75`

Thus, the value of 'a' and 'b' is, 50 and 75 respectively.