Step-by-step explanation:
-21 - (38)
-21-38
-(21+38)
-59
Answer:
= -21 - 38
= -59
x1= -5 x2=0.5 y= -5
the answer is b as the minuses can be interchanged for the x intercepts
As you can see as explained in the pictures
2x+5y=9
3x+7y=13
6x+15y=27
-6x-14y=-26
y=1
x=2