Question

2t + 3t + 5 = 2t - 3

Grade 9 work.

please help me, i beg :(

Answer 1

1) isolate the t's on one side.
2) then subtract and add as usual and find t as usual

Answer 2

i would combine like terms on the left first :
\[2t + 3t + 5 = 2t - 3 \] turns in to
\[5t+5=2t-3\]

Answer 3

then if you subtract \(2t\) from both sides you will get
\[3t+5=-3\] subtract 5 to both sides , get
\[3t=-8\] and finally divide both sides by 3 to get \(t=-\frac{8}{3}\)

Answer 4

But Satellite how will we do this? Like your not explaining the (subtract 2t from both sides, subtract 5 to both and the divide both sides by 3)

Answer 5

ok lets start at the end
suppose i told you that \(3t=-8\) could you tell me what \(t\) was?

Answer 6

no...

Answer 7

ok lets try an easier one
suppose i told you \(3t=12\)
what would \(t\) be in this case?

Answer 8

3

Answer 9

yes, and how do you know it?
one reason is because \(3\times 4=12\) which is another way of saying
\[4=\frac{12}{3}\]

Answer 10

in other words, so solve \(3t=12\) you divide \(12\) by \(3\)

Answer 11

2x + 5x = -9 + 4

4y 6y
--- = ----
2 3

32x + 2 = 4x +3

THESE QUESTIONS HELP

Answer 12

now \(3\) does not go in to \(-8\) evenly, so we don't get a whole number as an answer, but you still divide \(-8\) by \(3\) but in this case you just write the answer as \(-\frac{8}{3}\) without actually dividing

Answer 13

first one
\[2x + 5x = -9 + 4 \] what is \(2x+5x\) ?

Answer 14

Ok, now do the other ones. THANKS!

Answer 15

7?

Answer 16

just do it please hurry :(

Answer 17

do all the questions!

Answer 18

if you just want the answers and are not worried about how to do them, don't ask here where there might be mistakes
just do this:
http://www.wolframalpha.com/input/?i=2x+%2B+5x+%3D+-9+%2B+4

it won't help you learn, but it will surely get all the answers right if that is what you are interested in

Answer 19

i do want to learn

Answer 20

that site isn't doing anything