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Mathematics 15 Online
OpenStudy (anonymous):

find the value of x RT=4x+10 SW=5x-20

OpenStudy (anonymous):

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OpenStudy (anonymous):

you would set the two equations equal to each other

OpenStudy (anonymous):

and then just do inverse operations

OpenStudy (anonymous):

answer would be 7?

OpenStudy (anonymous):

nope

OpenStudy (anonymous):

i know that wasnt right

OpenStudy (anonymous):

lol

OpenStudy (anonymous):

would it be 1

OpenStudy (anonymous):

do 4x + 10 = 5x - 20

OpenStudy (anonymous):

i did and i got 1 i divided 9 with 10

OpenStudy (anonymous):

you would subtract 4 from 5 since 4 is positive so it would leave you with 10 = x - 20

OpenStudy (anonymous):

4x from 5x

OpenStudy (anonymous):

is 1 and i would divide 1 with 10?

OpenStudy (anonymous):

look this is confusing

OpenStudy (anonymous):

its ok

OpenStudy (anonymous):

you would then add 20 to the other side since its a negative and you would get x = 30

OpenStudy (triciaal):

the diagonals in a rectangle are of equal value set the expressions equal and solve for the one unknown

OpenStudy (anonymous):

ohh so would it be 30

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

is that the answer

OpenStudy (anonymous):

yes

OpenStudy (triciaal):

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