Question

m-4n=8, solve for m please explain

Answer 1

m=4n+8

Answer 2

i came up with m=8-4n
what did i do wrong?

Answer 3

you need to add 4n to both sides

Answer 4

adding 4n to -4n on the left side gives you -4n+4n = 0n = 0 which goes away

Answer 5

oh! i subtracted 4n from each side

Answer 6

adding 4n to the right side gives you 8+4n

Answer 7

so your answer is m = 8+4n which can be written as m = 4n+8

Answer 8

ok. i think i did -4n instead of +4n

Answer 9

yep or you just moved the -4n term away from what you wanted to solve for

Answer 10

can i ask you another one then? st+3t=6, solve for s

Answer 11

ok follow the order of operations in reverse


So you're undoing addition/subtraction

Answer 12

what happens if you did subtract 4n instead of adding 4n
you would get the following:
m-4n-4n=8-4n
m-8n=8-4n <-- this made things uglier

Answer 13

so you're undoing +3t, so you subtract 3t from both sides to get

st = 6-3t

Answer 14

ok i understand i did it wrong thank you very much

Answer 15

ok

Answer 16

what comes next?

Answer 17

s=6-3t/t, is that right?