Question

Greg is going to solve the system of linear
equations below.
First Equation: 8x − 2y = 8
Second Equation: 3x + 3y = 9
Which of the following would Greg NOT use to
solve this system of equations?
A Solve the second equation for y and then
substitute the result into the first equation.
B Multiply the first and second equation by -6 to
eliminate the y variable.
C Solve the first equation for y and then substitute
the result into the second equation.
D Multiply the first equation by 3 and the second
equation by 2 to eliminate the y variable.

Answer 1

Take another look at B.

Answer 2

how is it B? plz explain