Question

90. If x + y = 6 and 3x - y = 4, then x - y is equal to: A. -1 B. 0 C 2. D. 4 E. 6 91. A number, x, is chosen at random​

Answer 1

Answer:

-1

Step-by-step explanation:

x+y=6

3x-y=4

using elimination method y was cancelled

so4x=10

x=10/4=5/2

put the value in x+y=6

5/2+y=6

y=7/2

x-y =-1