Question

6.
2a = 3b +5
5b = 3а - 4​

Answer 1

Answer:

2a = 3b +5 _______ (1)

-3a = -5b -4

3a = 5b +4 ________(2)

multiple equation (1) by 3 and (2) by 2

6a=9b + 15 ________(3)

6a = 10b + 8 ________(4)

subtract equation 3-4

0= -1 b + 7

1b = 7

putting value of b in equation (1)

2a = 3(7)+5

2a = 21 + 5

2a = 26

a = 13