Answer:
The number is -5.
Step-by-step explanation:
x+x=x-5
2x=x-5
x-2x=5
-x=5
x=-5
-14.9 =

- 2.1 (Add 2.1 to both sides)
-12.8 =

(Multiply both sides by 8)
-102.4 = x
~~~Hope this helps!~~~
Answer: rectangle does not have all equal sides
Step-by-step explanation:
the square and rhombus are quadrilaterals that have equal side lengths on all sides
9514 1404 393
Answer:
a = 3
Step-by-step explanation:
The x-values 5, 3, 1 form an arithmetic sequence. The y-values will do the same: 1, 2, a = 1, 2, 3 -- a common difference of +1.
a = 3
Answer:
47/100
Step-by-step explanation:
47 -> 0.47 47/100 = 0.47