Question

substitution method
x+y=19
2x+11y=26​

Answer 1

Step-by-step explanation:

from eq1

x=19-y

putting the value in eq2

2(19-y)+11y=26

38-2y+11y=26

+9y=-12

y=-12/9

y=-4/3

now putting the value of y in equation 1