Question

3a + 5b = 26 ; a + 5b = 22​

Answer 1

Answer:

66-15b+5b= 26

10b= 40

b= 4

a= 22-20

a= 2

Answer 2

Answer:

Solution:

3a + 5b = 26 .....(1)

a + 5b = 22 .....(2)

Subtracting equation (2) from equation (1),

3a + 5b = 26 .....(1)

-

a + 5b = 22 .....(2)

- - -

___________

2a = 4

∴ a = 2 ......(Dividing both the sides by 2)

Substituting a = 2 in equation (1),

3 (2) + 5b = 26

∴6 + 5b = 26

∴ 5b = 26 - 6

∴ 5b = 20

∴ b = 4

final answer= (a,b) = (2,4) is the solution.