Ask your own question, for FREE!
Mathematics 13 Online
OpenStudy (diamond77108):

3(p-2)=7=32-4(2p+5)

OpenStudy (eliesaab):

Expand first

OpenStudy (eliesaab):

Like if you have 4(p-5)=4p -20

OpenStudy (eliesaab):

Is 3(p-2)=7 3(p-2)-7?

OpenStudy (diamond77108):

ok i did that

OpenStudy (eliesaab):

You have two equal signs. Which is -?

OpenStudy (diamond77108):

+7 sorry

OpenStudy (eliesaab):

Is this your equation 3(p-2)+7=32-4(2p+5)

OpenStudy (diamond77108):

yeah

OpenStudy (eliesaab):

Expand on both side and show me what you obtain

OpenStudy (eliesaab):

sides

OpenStudy (diamond77108):

3p-6+7=32-8p+5

OpenStudy (diamond77108):

+20

OpenStudy (diamond77108):

not 5

OpenStudy (eliesaab):

Good, now bring the terms that have p on side and take the rest to the other side

OpenStudy (eliesaab):

3(p-2)=7=32-4(2p+5) 3p-6+7=32-8p-20

OpenStudy (eliesaab):

it should be -20

OpenStudy (eliesaab):

3p-6+7=32-8p-20 3p+1=-8p +12

OpenStudy (eliesaab):

Add -1 to both sides

OpenStudy (eliesaab):

3p=-8p+11

OpenStudy (eliesaab):

At the end you get 11 p =11 How much is p?

OpenStudy (diamond77108):

1

OpenStudy (diamond77108):

ok thanks i have on question when there is a sub traction sign next to a number in expressions like this are they always going to be negative numbers

OpenStudy (eliesaab):

Can you give me an example?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!