Answer:
X=11
Step-by-step explanation:
4x - 13 = 2x + 9
-2x -2x
2x-13=9
+13=+13
2x=22
divide by two each side
2/2=1
22/2=11
x=11
D) -20/-5 because a negative divided by a negative is a positive.
40
ABD-CBD=ABD
70-30=40
0.23
you divide the percent by 100 I think