-2m + 7 = m - 2 +7 +2 = m +2m 9 = 3m 3m = 9 m = 9/3 = 3 to test: -2(3) + 7 = (3) - 2 -6 + 7 = 3 - 2 1 = 1
17
3m-5 = 7-21 3m = 7-21+5 3m = -9 m = -3
If: 7+3m = -29 then the value of m is -12
The equation 3m - 3m - 7 = 0, simplifies to -7 = 0 this means that the the solution is no solution, since -7 doesn't equal 0.
-2m + 7 = m - 2 +7 +2 = m +2m 9 = 3m 3m = 9 m = 9/3 = 3 to test: -2(3) + 7 = (3) - 2 -6 + 7 = 3 - 2 1 = 1
3m + 11n = 3
17
9m - 28 = 2m Therefore, 7m = 28 m = 28/7 m = 4
3m-5 = 7-21 3m = 7-21+5 3m = -9 m = -3
If 3m - 7 = 8, then m = 5
If: 7+3m = -29 then the value of m is -12
5m+2n, n-3m, 7-3n (5m+2n)+(n-3m)+(7-3n)=2m+7
The equation 3m - 3m - 7 = 0, simplifies to -7 = 0 this means that the the solution is no solution, since -7 doesn't equal 0.
m = 7 3m-8=13 3m=21 m=21/3 m=7
2m+7-m=-402m-m+7=-40m+7=-40m=-47
3m + 7 = 5 Subtract 7 from both sides: 3m = -2 Divide both sides by 3: m = -2/3