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Mathematics 16 Online
OpenStudy (anonymous):

Solve for following for x: x(a + b) = c

jimthompson5910 (jim_thompson5910):

hint: x(a+b) = c is the same as x * (a+b) = c where the * means "times or multiply"

jimthompson5910 (jim_thompson5910):

you want to undo this multiplication

OpenStudy (anonymous):

do you have to distribute

jimthompson5910 (jim_thompson5910):

no

jimthompson5910 (jim_thompson5910):

what undoes multiplication?

OpenStudy (anonymous):

division

jimthompson5910 (jim_thompson5910):

so you have to divide both sides by ______

OpenStudy (anonymous):

a+b ?

jimthompson5910 (jim_thompson5910):

good

OpenStudy (anonymous):

lol that's it ?

jimthompson5910 (jim_thompson5910):

yep

jimthompson5910 (jim_thompson5910):

that will isolate x

OpenStudy (anonymous):

how would you write the final answer ?

jimthompson5910 (jim_thompson5910):

you tell me

jimthompson5910 (jim_thompson5910):

or draw it out

OpenStudy (anonymous):

is this it? x=c/(a+b)

jimthompson5910 (jim_thompson5910):

yep \[\large x = \frac{c}{a+b}\]

OpenStudy (anonymous):

let me see if its right

OpenStudy (anonymous):

it is thanks !

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