Question

7x + 3x + 4 = 24 (Given) 10x + 4 = 24 (Simplify) 10x = 20 (?) x = 2 (Division) What is the missing reason for the argument shown?

Answer 1

subtraction

Explanation:

usatestprep answer

Answer 2

Subtraction.

Explanation:

We have been given an expression:
`7x+3x+4=24`.

Simplify our given expression:

`(7+3)x+4=24`

`10x+4=24`

Subtract 4 from both sides of equation:

`10x+4-4=24-4`

`10x=20`

Divide both sides of equation by 10:

`(10x)/(10)=(20)/(10)`

`x=2`

Therefore, the missing reason for the shown argument is subtraction.