Answer:
a+b=(6,3)
6a+8b=(54,16)
a=(-3,4)
a-b=(-12,5)
Answer:21
Step-by-step explanation:1-63=90
2x1=2
Step-by-step explanation:
If it asks for 2, but he is making that one time he still needs to use 2.
x= -7
-4x - 36 = -8
-4x = - 8 + 36
-4x= 28
x= 28/-4
x= - 7