Question

27a+31b=85, 31a+27b=89 find the value a+b

Answer 1

Step-by-step explanation:

Adding both the equations

The value is 3

Answer 2

27a + 31b = 85---( eq 1 )

31a + 27b = 89---( eq 2 )

by adding eq 1 & 2,

we get,

58a + 58b = 174

58 ( a + b ) = 174

a + b = 3

I hope it helps you!!^_^