Question

Solve for x algebra help

Answer 1

Answer:

24

Step-by-step 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

Answer:

x=24

Step-by-step explanation:

Hi there!

We are given the following proportion:

$\frac{2}{10}=\frac{3}{x-9}$

And we want to solve for x.

First, let's reduce $\frac{2}{10}$, as reducing fractions typically makes the process easier

$\frac{2}{10}$ is the same as $\frac{1}{5}$

So:

$\frac{1}{5}=\frac{3}{x-9}$

We can't do anything to $\frac{3}{x-9}$, 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!