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Mathematics 21 Online
OpenStudy (anonymous):

7.5=2.0+1.5(3p+1)?

OpenStudy (goldphenoix):

Do the distributive property. 1.5 * 3p = ? 1.5 * 1 = ?

OpenStudy (anonymous):

4.5+1.5 right?

OpenStudy (goldphenoix):

Hmm. 1.5 * 3p = 4.5p. :) Anyways, now your equation will look like: 7.5 = 2.0+4.5p+1.5 Now combine like terms. 2.0 + 1.5 = ?

OpenStudy (anonymous):

3.5

OpenStudy (goldphenoix):

Good. Now the equation will look like: 7.5 = 4.5p + 3.5 What do you think you do next?

OpenStudy (anonymous):

do it like you would with two step equations?

OpenStudy (goldphenoix):

Uh... Sure. So what do you do?

OpenStudy (anonymous):

cancel 3.5 which is 4.5 and then you cancel the other 4.5 by it self and then on the other side [4.5] thus making it 1

OpenStudy (goldphenoix):

Hmm. Hold. 7.5 - 3.5 is not equal to 4.5. :)

OpenStudy (anonymous):

Oh! its 4.0. silly me

OpenStudy (anonymous):

Right so it's 4.0=4.5p. Canceling it will make it 0.888... and so on

OpenStudy (goldphenoix):

Correct. So p = .888... In fraction, it would be (8/9). I hope this help. :)

OpenStudy (anonymous):

Thank you! And just one more thing. How is can you make it a fraction?

OpenStudy (anonymous):

Oh and double thank you for the medal! Its my first!

OpenStudy (goldphenoix):

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