Question

10x-39+12x-9x+42-4x= 42 - 4x

Solve each equation for x.

Answer 1

First get all numbers on one side:
For example,
x + 6 = 2x -3
-6 -6
x = 2x -9


Second get all variables on one side:
x = 2x -9
-2x -2x
-x = -9

Third, divide each side by the coefficient of the variable (here, -1):
-x = -9
-1 -1

x = 9

Answer 2

http://www.geteasysolution.com/10x-39+12x-9x+42-4x=42-4x

Answer 3

this site will help you solve your question(s)

Answer 4

Move all like terms to left hand side & all other to right hand side

Answer 5

I did that and for some reason it came out wrong.. I know the answer is x=3 but I got something like 2.2.. Which isn't correct.

Answer 6

can you tell me what is 10x + 12x - 9x - 4x = -------------?

Answer 7

10x

Answer 8

Please check it ..

Answer 9

would it be 9x

Answer 10

or -9x?

Answer 11

Correct !! 9x so we will get 9x - 39 + 42 = 42 - 4x
Right ?

Answer 12

right

Answer 13

Now -39 +42 = ---------?

Answer 14

3

Answer 15

Correct !! so we have 9x + 3 = 42 - 4x
Now move all like terms to left side & constant term to right side
that is first add 4x to both sides so we get 9x + 3 + 4x = 42 - 4x +4x
9x+4x + 3 = 42 right ?

Answer 16

Yes. so then it would be
12x + 3= 42

Answer 17

Please check what is 9x + 4x = -------------?

Answer 18

oops haha 13x

Answer 19

so we have 13x + 3 = 42
To get rid of 3 from left side subtract 3 from both sides

Answer 20

What do you get ?

Answer 21

You get
13x=39
the divide right?

Answer 22

thank you

Answer 23

You are welcome :)