Question

sum of three numbers is 8 twice the second number when added to the first number give 7 on adding the twice of the first and second number to thrice the third number we get 20 find the numbers using Matrix method using adjoint method​

Answer 1

Step-by-step explanation:

let the no. be x

2x

2x+7+20=8

2x+7=20-8

2x+7=12

2x=12-7

2x=5

x=2.5