Solve for the variable in this equation.
x/2+1/4=3/4

- anonymous

Solve for the variable in this equation.
x/2+1/4=3/4

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- schrodinger

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- anonymous

First subtract 1/4 from both sides.
Than multiply both sides by 2 and you got your variable.

- anonymous

I dont know how to subtract from both sides

- anonymous

what's 1/4 - 1/4

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## More answers

- anonymous

0

- anonymous

great you did the left side now lets do the right side
whats 3/4 - 1/4

- anonymous

-1/4

- anonymous

hmm when adding or subtracting fraction you need to add or subtract the top number.
what's 3 - 1 ?

- anonymous

2

- anonymous

great the top number is 2 and the bottom stays the same. 2/4 Thats what you get.
ok now you have
x/2 = 2/4 (remember the left side you canceled the 1/4 )
now multiply both sides.

- anonymous

whats x/2 times 2

- anonymous

4

- anonymous

well no it's actually (2x)/2 ... the 2s in both the top and bottom will cancel so you are left with just x
now on the right side you do the same 2/4 times 2 = (2*2)/4
Whats 2 times 2?

- anonymous

4

- anonymous

ok whats 4/4

- anonymous

16

- anonymous

umm not your multiplied it but we want to divide.
try again 4 divided by 4?

- anonymous

oh 1

- anonymous

great so the right side is 1

- anonymous

and the left side is x

- anonymous

x=1

- anonymous

Oh thx

- anonymous

Sorry to interrupt you guys, How old are you PaigeMya?

- anonymous

Y

- anonymous

Age doesn't matter....

- anonymous

That's a creepy question @amogh

- anonymous

Yeah why do you want to know my age?

- anonymous

Oh don't take me wrong. Just wanted to know because everyone needs different treatment , clarification needed. And yeah Age doesn't matter, you're right, but that's the best I could ask concerning what I wanted.

- anonymous

Okay well im ten

- anonymous

Can i also just ask another question right now for you guys to help me with?

- anonymous

It's not about the age but the level of math you are taking.

- anonymous

Sure

- anonymous

@Romero Exactly, but how can someone answer to that?

- anonymous

Thanks, find the lowest common denominator that would eliminate the fractions in this equation.
8/9x+2/3x=1/9x+45

- anonymous

By the type of question they asked. Someone can ask a linear algebra question and they can be a freshman in college.

- anonymous

Which fraction has the lowest top number (numerator)?

- anonymous

1

- anonymous

1/9

- anonymous

|dw:1334995268203:dw|

- anonymous

so x = 1

- anonymous

@Raya_Atour im sorry but i dont think thats the answer...

- anonymous

@Raya_Atour That's not the question.

- anonymous

You might rather ask to yourself, what number should I multiply this equation with to get rid of all the fractions (denominators)

- anonymous

It would be 3 if we can get 1/9 to have a 3 in the bottom but we can't because 1/9 is the most simplified version so 9 has to be the lowest.

- anonymous

okay

- anonymous

So now what @Romero

- anonymous

Well you found the number that will cancel out the fractions. Now you have to multiply 9 to both sides.

- anonymous

both sides of what @Romero

- anonymous

the equation

- anonymous

Can someone just give me the answer just this once because im doing this just to learn not to study im only ten andill figure out how to get the answer later im tired

- anonymous

Romero answered it!

- anonymous

Wait then whats the answer?

- anonymous

Oh its 9

- anonymous

oh thx

- anonymous

Don't try to get a direct answer, that might not help you in the long run ;) just an advice! Straining makes you more better!

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