154-m=84! please explain your answer!
2007-09-24 09:43:18 · 6 answers · asked by bb_trainer 2 in Science & Mathematics ➔ Mathematics
I know to subtratc 154 from both sides but then you have to do 84-154. that's
-70, right
2007-09-24 09:53:34 · update #1
OK - you should be able to do this- here you go
154-m =84 (get m by itself- to do this subtract 154 from both sides)
154-m -154 = 84-154
-m = -70
m=70
Now check it
154 -70 =84 ??
84 =84 YES!
Hope this helps.
2007-09-24 09:48:25 · answer #1 · answered by pyz01 7 · 0⤊ 0⤋
154-70=84 so m=70.
2007-09-24 16:48:05 · answer #2 · answered by harleysangel2000 4 · 0⤊ 0⤋
154 - m = 84
means that
154 = 84 + m
which also means that
154 - 84 = m
so
70 = m
Hurray!!
2007-09-24 16:47:53 · answer #3 · answered by Bahooya 2 · 0⤊ 0⤋
154-m=84
154 -84 = m
70 =m
You can move terms from one side of the = sign to the other if you change their sign. This process is called transposition, but does not seem to be taught anymore, even though it is the simplest way to solve many problems.
2007-09-24 16:49:16 · answer #4 · answered by ironduke8159 7 · 0⤊ 0⤋
subract 154 from both sides to get m by its self. it will be negative. -m= -70
Then you would multiply both side by -1 to make postitive then you have your answer.
-m(-1)=-70(-1)
m=70
2007-09-24 17:02:47 · answer #5 · answered by Sexy Red 1 · 0⤊ 0⤋
add m to each side
subtract each side by 84
m=70
2007-09-24 16:57:16 · answer #6 · answered by vixens_in_therapy 3 · 0⤊ 0⤋