Question

Which equations shows the substitution method being used to solve the system of linear equations?

x + y = 6
x = y + 5
A. x + y = y +5
B. (y + 5) + y =6
C. x + (y +5) = 6
D. x = (x - 6) + 5

Answer 1

The answer is B,,, because you substitute y+5 for x in the first equation