Question

Step 1 5x- y= 4

-Y= -5x + 4
y= 5x – 4
Step 2 5x = (5x- 4) = 4
5x – 5x + 4 = 4
4 = 4
What is the error correct the error

Answer 1

Answer: C, In Step 2 the expression for y should be subsituted in the other equation.