Question

4x - 6 - 8x - 9 = 21
Just checking again if I am right, But I got the answer.

Answer 1

what's you answer?

Answer 2

ughh.. I think 9 right ?

Answer 3

negative 9.... :)

Answer 4

you must have missed a negative sign somewhere...

Answer 5

we can go through this if you want...

Answer 6

oohh ryte I got it. from the negative four.

Answer 7

good work... part of being good at math is checking your own work and see where your miscalculations occur... :)

Answer 8

thank you. can I ask you one more question ?

Answer 9

fire away... :)

Answer 10

but when I put (4x-9) - 6 - (8x-9) - 9 = 1

Answer 11

let's simplify this...

Answer 12

(4x-9) - 6 - (8x-9) - 9 = 1
4x - 9 - 6 - 8x + 9 - 9 = 1


do you understand why the "-" changed to a "+" between the 8x and the 9?

Answer 13

not rely...

Answer 14

use distributive property...