What does x equal in 4x-9-3.5x-9 ?

X=0

Step-by-step explanation:

I believe you meant 4x-9=3.5x-9, and I make this assumption due to it being impossible to "solve for x" in the format you gave. The only possibile solution to the question you gave is to simplify it, which would be 0.5x-18.

However, going with what I believe you meant, x would have to equal 0. There's no other possibility besides this, as 0 is the obvious option. Multiplecation by 0 will always produce 0. For 4x-9 AND 3.5x-9 to produce the same value, you'd have to make the variable a number that, when multipled by its coefficient, will produce an identical value. X=0 is the only number that fits this bill.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.