7=5+m Can someone help explain this to me?

2 ⤊

7=5+m Can someone help explain this to me?

2007-12-20 07:42:31 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

3 answers

m is an unknown number that we have to find so that the equation is true.
m + 5 = 7
m = 2

2007-12-24 07:38:00 · answer #1 · answered by Como 7 · 1⤊ 0⤋

It means 7 is 5 plus a number, m. So, to find m you would subtract 5 from both sides. On the left you get 7-5 and on the right you get 5+m-5

so, 2=m

2007-12-20 15:48:12 · answer #2 · answered by Yasmin 2 · 1⤊ 0⤋

7=5+m You need to get m by itself on one side to solve for m.

you can do anything to the equation as long as you do it to both sides.

Subtract 5 from both sides:

7-5=5+m-5

simplify:
2=m

2007-12-20 15:49:19 · answer #3 · answered by Anonymous · 0⤊ 0⤋