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4m+9+5m-12=42 9m=45 m=5

4m + 9 + 5m - 5 = 42 9m + 4 = 42 9m = 38 m = 38/9

4m + 9 + 5m - 12 = 42 9m -3 = 42 9m = 42 + 3 9m = 45 m = 5

4m + 9 + 5m - 12 = 42 Combining like terms to both sides:9m=42+12-9=>9m=45 divide both side by 9:m=5;

6m + 5n - 4m + 7n = 2m + 12n

-4m + 3 = -8 -4m = -8 -3 -4m = -11 4m = 11 m = 2.75

4m+15=8m-5 or,4m=20 or,m=5

3+4m+5m=214m+5m=21-39m=18m=18/9m=2

simplified it equals, 9m+8

It is [4m-1, (4m-2)/3]

4m + 3m = 180 7m = 180 m = 25 5/7

-4M+3=-9 -4M=-12 M=-12/-4 Negatives Cancel M=12/4 M=3

15+4m=-14m=-16 (subtract 15 from both sides to isolate variable (4m))m=-4 (divide each side to isolate variable from coefficient)

36

(2m + 1) and (6m - 1)

40dm = 4m4m = 4000mm

If: -4m -7 = 17 Then: m = -6

4m + 12 = 604m + 12 -12 = 60 -12 (1st subtract 12 from both sides)4m = 484m/4 = 48/4 (now divide both sides by 4 to solve for m)m = 12

4m + 327m = 331m

405 centimeters because 4m equals 400 cm and plus 5cm equals 405cm

4m = 10. 10/4=2.5. So m=2.5

2n + 4m - 2n + m = 5m

It simplifies to -10-4m

M = 5 * * * * * 4m + m - 11 = 9 or 5m - 11 = 9 so that 5m = 20 and then m = 4, NOT 5.

4m(2m^2 + 4m + 3)