Question

Solve for x.

2x - 4 2x
--------- = -----
10 20

Answer 1

Do u know how to cross multiply

Answer 2

yes

Answer 3

So multiply 2x-4 with 20 and that would equal 10 times 2x

Answer 4

oh that really helped

Answer 5

\(\large\color{#000000 }{ \displaystyle \frac{2x-4 }{10} =\frac{2x}{20} }\)

multiply times 2 on top and bottom

\(\large\color{#000000 }{ \displaystyle \frac{4x-8 }{20} =\frac{2x}{20} }\)

And therefore;

\(\large\color{#000000 }{ \displaystyle 4x-8 =2x }\)


(if you want to get creative)

Answer 6

same way, you can divide by 2 on top and bottom on the right side (instead of multiplying times 2 on top and bottom on the left side).