Need help! Equation will be in the responses.

- becca9898

Need help! Equation will be in the responses.

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- anonymous

whats up?

- becca9898

\[-7x+3 = \frac{ -15 }{ 2 }\]

- becca9898

I am unsure where to start :/

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## More answers

- anonymous

are you solving for just x? or simplifying?

- becca9898

Solving for x

- anonymous

alright well this is fairly simple.. haha give me a moment?

- becca9898

Sure! :)

- anonymous

alright so the first we want to isolate x, right?

- becca9898

Correct, so would we minus 3/1 ?

- anonymous

well not 3/1 but just 3

- becca9898

I just figured the 3/1 because we have to subtract it from the -15/2... Would we have to multiply the 3/1 by 2 to have an equal denominator?

- anonymous

so you will get -7x=-15/2-3

- anonymous

and yes that would be another way to do it but either way you will get the same answer if you simplify -15/2-3

- anonymous

do you see what im trying to say? haha

- becca9898

So if I do -15/2-3 would it just be 15?

- anonymous

what is -15/2 ?

- becca9898

the problem is I cannot use decimals in this equation, they want me to keep fractions. So -15/2 would just be -15/2 because it cannot be simplified.

- anonymous

alright sorry i didnt know that

- becca9898

After doing the math -15/2 - 3/1 should come out to -9/2, right?

- anonymous

a negative - a negative is?

- becca9898

a positive?

- anonymous

it is always a negative so -15-6=-21

- anonymous

god im getting confused haha let me type the entire problem then ill explain it alright?

- becca9898

OK :)

- anonymous

-7x+3=-15/2
-7x=-15/2-3/1*2 "to combine these we need the same denominator so we multiply by two"
-7x=-15/2-6/2
-7x=-21/2

- anonymous

okay haha thats as far as i got now this is where you come in... we will simplify with decimals then replace them with fractions...

- anonymous

-21/2=-10.5
-7x=-10.5

- anonymous

divide by -7, isolating x

- anonymous

x=-10.5/-7

- anonymous

you get 1.5

- anonymous

1.5= 3/2
so x=3/2

- becca9898

Thank you!!

- anonymous

haha is that one of you ranswers?

- anonymous

no..... thank you, for bearing with me lol

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