Answer:
a.4
Step-by-step explanation:
Because 10 is greater than 6 so, it turns into a positive instead of a negative. and of course 10 + 6 = 4
Answer:
I think the answer is 11. 18
Answer:
x=4, y=-4/3. (4, -4/3).
Step-by-step explanation:
8x+9y=20
x=-3y
---------------
8(-3y)+9y=20
-24y+9y=20
-15y=20
y=20/-15
simplify
y=-4/3
x=-3(-4/3)=12/3=4
Answer:
it's d
Step-by-step explanation: