Question

Solve for x algebra help

Answer 1

24

Explanation:

Cross multiply:

2(x - 9) = 2x - 18

3(10) = 30

2x-18 = 30

+18 +18

-----------------

2x = 48

----- -----

2 2

x = 24

Hope this helped.

Answer 2

x=24

Explanation:

Hi there!

We are given the following proportion:

`(2)/(10)=(3)/(x-9)`

And we want to solve for x.

First, let's reduce
`(2)/(10)`, as reducing fractions typically makes the process easier

`(2)/(10)` is the same as
`(1)/(5)`

So:

`(1)/(5)=(3)/(x-9)`

We can't do anything to
`(3)/(x-9)`, but that's okay.

Now we can cross multiply, as this is a proportion

Multiply x-9 by 1 and 3 by 5

1(x-9)=3(5)

Multiply

x-9=15

Now this is an equation

Our goal is to isolate x on one side

So let's add 9 to both sides to remove it from the left side

x-9=15

+9 +9

_________

x=24

Hope this helps!