His mistake was in multiplying the 3 with the 12. He should have divided it from the 12 because that would have gotten rid of the 3 with the variable. It would also lead to the correct answer, which is b=4
Answer:
4x²+3x-7 is the answer
Step-by-step explanation:
=(4x²-2x)+(5x-7)
opening brackets
=4x²-2x+5x-7
=4x²+3x-7
i hope this will help you :)
Answer:
There is nothing there...
Step-by-step explanation:
I wish I could help you but you need to put in a picture or diagram
2/3 is equivalent to 4/6. Other fractions are 6/9, or 8/12.
3 x 5 = 15 because the opposite of dividing is multiplying
