Answer:
1) incorrect
2) incorrect
Step-by-step explanation:
-2x-2x = 0 ?
-2x -2x = -4x
It will be 0 only if x = 0.
Not always true, so incorrect
x+x = x² ?
2x = x²
They will be equal if x = 0 or 2.
Not always true so incorrect
500 + 30% equals 650. 30% of 500 equals 150.
Yes
If you multiple 1/3 by 3/3 you would get 3/18
d definetly d
