Question

3x - 5x + 8x + x = 42
I keep getting 11x but it can't divide into 42

Answer 1

3x - 5x + 8x + x = 42
12x - 5x = 42
7x = 42
x = 42/7
x = 6

Answer 2

any questions ?

Answer 3

Yes a few

Answer 4

ask away

Answer 5

I thought I couldn't Jump around like you did?Thats why I didn't add the 3x I thought you couldn't change the addition signs and subtraction signs on these type of problems?

Answer 6

I didn't change the signs.....the 3x , the 8x, and the (1)x are positive and they equal 12x. Then there is the -5x....so you subtract 5x from 12x and that leaves you with 7x. You then divide by 7 and that leaves x equal to 6.
Do you understand ?

Answer 7

Yes I just thought I couldn't move around like you did solving the problem is what im trying to say

Answer 8

First I add all the positives together, and then I add all the negatives together, and then I subtract, or add (whatever the signs lead me to do)
You can move around.

Answer 9

thanks

Answer 10

no problem :) Have a nice day