The answer is 7
3x-3=18 (take 3 to the other side to solve for x)
3x=18+3 (3 will be positive)
3x=21 (divide both sides by 3)
x=7
Add 509 and 12:
509
+ 12
____
521
509 + 12 = 521
Answer:
166.68
Step by Step:
166.678
The bolded number is greater than 5 meaning you have to round up.
so 166.678 is rounded to 166.68.
Hope this helped.
Answer:
a
Step-by-step explanation:
42*3/6 is equal to 42*1/2, or 21.
