Question

if X= a and y= 1 is the solution of the equation x + 3 y = 12 thenfind a​

Answer 1

Answer:

a= 9

Step-by-step explanation:

x=a, y=1

x+3y= 12

Replace x as a and y as 1

a+3(1)= 12

a+ 3= 12

a= 12- 3

a = 9 is the answer