Question

NEED HELP FAST!!!
Mindy wants to solve the following system using the elimination method:
y = x − 4
y = 2x − 3
What number should the equation y = x − 4 be multiplied by to eliminate x?
A.) −2
B.) −4
C.) −1
D.) −6

Answer 1

It should be multiplied by -2 to give  -2y = -2x + 8  

Answer is A

Answer 2

D.) negative six be cause six is a factor of twelve and three and four can both go into 12