| –3.9| + | 3.9|
absolute value of | –3.9| is 3.9
absolute value of |3.9| is 3.9
so replacing the above values with
3.9 +3.9 =7.8
Ok so I know the answere it is -11
Answer:
Step-by-step explanat số âm vì số âm < số dương mà nhiệt đọ càng thấp thì càng lạnhion:
Answer:
D. 0
Step-by-step explanation:
Answer:
x= 11
y= -2
Step-by-step explanation:
8y + 27 =x
3(8y+27) + 7y =19
24y + 81 + 7y =19
31y + 81 =19
<u> -81 -81</u>
<u>31y</u> = <u>-62</u>
<u>31 31 </u>
y = -2
-x + 8(-2) = -27
-x - 16 = -27
<u> +16 +16 </u>
-x = -11
x= 11
