Question

7x-4 =20 + 3x
x=???????

Answer 1

x=6

Explanation:

collect like terms

7x-3x=20+4

4x=24

x=

Answer 2

`x=6`

Explanation:

`7x-4=20+3x`

Add 4 to both sides.

• 
  `7x-4+4 =20 + 3x+4`

• 
  `7x=3x+24`

Subtract 3x from both sides.

• 
  `7x-3x=24`
• 
  `4x=24`

Divide both sides by 4.

• 
  `\cfrac{4x}{4}=\cfrac{24}{4}`
• 
  `x=6`

-Hope this helps!