Answer:
The step 4 is not what he should have done. But the wrong is step 5, because if he added -2x both sides, it would give the following equation:

and not 
Note that in step 4 he should have added 2x and not -2x to both sides, but we still have the equality. The problem is that step 5 is totally wrong.
I don't know what answer is expected to this question, but I would mark step 5, because this is mathematically wrong.
Solving the equation

Using distribution

Add
both sides


Add 12 both sides

Divide both sides by 5

Answer:
I think it is 4 white and 3 blue
Step-by-step explanation:
Because they have 3 cups of white then 6 cups of white so i think they multiplied it. Then they have 4 cups of blue then 8 cups of blue. So if you multiply it, it will give you the answer. I hope this is right and it helped and can you mark me brainliest!!!!!!!!
Answer:
6y^2+2y
Step by step explanation:
2y*(y+3)+4y*(y-1)
Distribute 2y through the parentheses
2y^2+6y+4y*(y-1)
Distribute 4y through the parentheses
2y^2+6y+4y^2-4y
Collect like terms
6y^2+6y-4y
Collect like terms
6y^2+2y
Answer
6y^2+2y
Answer:
ssdfhhhgfhhfhbcfhvzsfb dgg
Answer:
15.620
Step-by-step explanation:
use pythagorean theorm :)
(the 6 is pointless for this problem)