Question

what is the value of x in the system? 5x-3y=23 3x+5y=7

Answer 1

5x-3y=23...............equation (1)

3x+5y=7.................equation (2)

Eq. (1) x 5: 25x-15y=115......Equation (3)
Eq. (2) x 3: 9x + 15y=21........Equation (4)
Eq (3)+Eq. (4): 34x = 136 (eliminating y)
Therefore, x = 4