Can somebody help me? Solve the following system of equations using elimination.
3x + y = 13
x + 6y = -7
A) Multiply the second equation through by -3
-3x - 18y = 21
B) Add the two equations and we get that
-17y = 34
y = 34 / -17 = -2
C and D ) x + 6(-2) = -7
x - 12 = -7
x = -7 + 12 = 5
E ) (x , y) = ( 5, -2)
What is letter A.)
A)