Question

If A=5m+11n-15p,B=12m-13n+19p and C=7m-6n+21p , then the value of A+B−C is​

Answer 1

Answer:

given :A+B-C

Then value of A=5m+11n-15p

B=12m-13n+19p and C=7m-6n+21p

Then,

(5m+11n-15p)+(12m-13n+19p)-(7m-6n+21p)

ans:10m+4n-17p

Answer 2

The value is 10m + 4n - 17p

Given,

A=5m+11n-15p

B=12m-13n+19p

C=7m-6n+21p

To Find,

A + B - C =?

Solution,

A=5m+11n-15p

B=12m-13n+19p

C=7m-6n+21p

Putting values of A, B and C in A + B - C

A + B - C = (5m+11n-15p) + (12m-13n+19p) - (7m-6n+21p)

A + B - C = 5m + 11n - 15p + 12m - 13n + 19p -7m + 6n - 21p

A + B - C = 5 m + 12m - 7m + 11n - 13n + 6n - 15p + 19p - 21p

A + B - C = 17m - 7m + 17n - 13n + 19p - 36p

A + B - C = 10m + 4n - 17p

Hence, the value of A+B−C is​ 10m + 4n - 17p.