Question

Find the sum of following expression.
m“ – 7m°,5m* ----m+21m,-m' +4m² +3
9​

Answer 1

Step-by-step explanation:

5m -3n = 19 ---1equation

m-6n =-7 ----2equation

_______________

[ 5m -3n = 19 ] ×1

[ m -6n = -7 ] × 5

____________, __,

5m -3n = 19

5m -30n = -35

- + +

___________

27n = 54

n = 54/27

n = 2

Putting the value of n in 1equation.

5m -3(n) = 19

5m -(3×2) = 19

5m -6=19

5m = 19+6

5m = 25

m = 25/5

m = 5

___________

n =2

m =5

I hope this will help you

Answer 2

Answer:

please refer to attachment and mark my answer as branliest