can you explain to me how to do this step by step thanks:
10s + 30=5s-125
2006-09-03 09:38:29 · 5 answers · asked by nikki fm 2 in Education & Reference ➔ Homework Help
10s + 30 = 5s - 125
Subtract 5s from each side
5s + 30 = -125
Subtract 30 from each side
5s = -155
Divide both sides by 5
s = -31
Plug s = -31 into each side if you want to confirm the equality you should get -280 in each case.
2006-09-03 09:47:17 · answer #1 · answered by Andy S 6 · 1⤊ 0⤋
Ok what you have to do is put what's common on the same side
so 10s+30 = 5s-125
will be: 10s-5s = -125-30
(note that what you transfer to the other side changes sign i.e. + will become - and - will become +)
if you work it out you'll have that 5s = -155
now to get s you want to divide both sides by 5
the solution is s = -31
2006-09-03 16:55:13 · answer #2 · answered by Auntie Alex 3 · 0⤊ 0⤋
ok well... you have to subtract the 30 from both sides and subtract the 5s from both sides so it looks like this:
5s=-155 because 10s-5s = 5s on the left side and -125-30 is -155 so then you just divide -155 by 5 to get -31 i think... i did it in my head so you probably wanna recheck the work hope this is what you meant by step by step explanation =)
2006-09-03 16:46:37 · answer #3 · answered by Da Chestnut 3 · 0⤊ 0⤋
To start: 10s+30 = 5s-125
rearranging: 10s-5s = -125-30
which becomes: 5s = -155
then divide both sides by 5
which becomes: s = -31
2006-09-03 16:42:53 · answer #4 · answered by Kivus Tzarian 2 · 1⤊ 0⤋
10s+30=5s-125
combine like terms
subtract 5s from both sides
5s+30=-125
subtract 30 from both sides
5s=-155
divide by 5
s=-31
viola
2006-09-03 19:58:37 · answer #5 · answered by musicpetlover 2 · 0⤊ 0⤋