Question

If a + b = 4 and b + d = 2
find the "d" ?
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Answer 1

Answer:

a-2

Step-by-step explanation:

$a + b = 4$

$b = 4 - a$

Substituting this value in second eqn., we get

$4 - a + d = 2$

$d = a - 2$

Hope you got it... ❣️

Answer 2

Answer:

                    Here you go mate

Step-by-step explanation:

Given that :

                         a + b = 4

                         b + d = 2

i)    a + b = 4

           b =  4 - a

ii)    b + d = 2

           b = 2 - d

As both are equal to b those both are also equal.

           4 - a = 2 - d

     4 - a + d = 2

                d = 2 + a - 4

               d  = a - 2

Answer : d = a - 2

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