Question

By solving a pair of linear equations x + y = 8 and 2y − x = 1, the values of ‘x’ and

‘y’ are

A. x = 3, y = 5 B. x = 4, y = 4

C. x = 5, y = 3 D. x = −5, y = -3​

Answer 1

Answer:

We can use elimination method:

By adding eq.1 and 2:

x + y - x + 2y = 1 + 8

3y = 9

y = 3

x + 3 = 8

X = 8-3

x = 5

OPTION C