Question

What value of x makes the equation 3x+7=22 true?

Answer 1

x = 5

Explanation:

Subtract 7 from both sides: 3x + 7- 7 = 22 - 7

Simplify: 3x = 15

Divide both sides by 3

Simplify: x = 5

Hope this helps:)

Answer 2

`x=5`

Explanation:

Given
`3x+7=22`, our goal is to isolate
`x` such that will have an equation that tell us
`x` is equal to something.

Start by subtracting 7 from both sides:

`3x+7-7=22-7,\\3x=15`

Divide both sides by 3:

`(3x)/(3)=(15)/(3),\\x=(15)/(3)=\boxed{5}`

Therefore, the value of
`x=5` makes the equation
`3x+7=22` true.