12 = 7 - m
Add 'm' to each side of the equation:
m + 12 = 7
Subtract 12 from each side:
m = -5
5m-7m = 12 -2m = 12 -2m/-2 = 12/-2 m = -6
7m-5 = 9 7m = 9+5 7m = 14 m = 2
If 7m = 4n+2 and 7m+2 = 8 m = 6/7 and n = 1
6
7m + 12We've examined it carefully looking for an 'equals' sign ( = ), but we've beentotally unsuccessful. So we know that it can't be an equation.It must be an expression.
5m-7m = 12 -2m = 12 -2m/-2 = 12/-2 m = -6
12/n+7m=30 12/6=2 + 7x4=28
7m-5 = 9 7m = 9+5 7m = 14 m = 2
If 7m = 4n+2 and 7m+2 = 8 m = 6/7 and n = 1
7x equals 3500
7m + 2 = 37 or 7m = 37 - 2 or 7m = 35 So m = 5
7m + 12We've examined it carefully looking for an 'equals' sign ( = ), but we've beentotally unsuccessful. So we know that it can't be an equation.It must be an expression.
700
6
10m 7m 7m
7m + 8 =71 7m = 71 - 8 7m = 63 m = 63/7 m = 9
-7m + 20 = -17m - 1010m = -30m = -3