Question

Mary has 2 more video games than John. Together, they have 30 video games.

How many video games does Mary have?
(Show work pls)

Answer 1

Mary has 16 video games.

Explanation:

Let John be
`x` and Mary be
`x+2`

Equation:
`x+(x+2)=30`

Combine like terms:
`2x+2=30`

Subtract 2 from both sides:
`2x=28`

Divide both sides by 2:
`(2x)/(2) =(28)/(2)`

`x=14`

Hold up!

In the beginning, we set
`x` as John, and
`x+2` as Mary. The question asks for Mary, so
`14+2=16`.

Let's check our work:
`x+(x+2)=30`

Replace
`x` for 14...

`14+(14+2)=30`

`14+16=30`

`30=30`

Hope this helped! :)

Answer 2

16

Explanation:

J + (2 + J) = 30

J + J + 2 = 30

2J + 2 = 30

- 2 -2

2J = 28

J = 14

14 + 2 = 16

M = 16