Respuesta :
8 - 4m - 20 = 3m - 27
- 4m - 12 = 3m - 27
+4m +4m
- 12 = 7m - 27
+27 + 27
15 = 7m
m = 15/7
- 4m - 12 = 3m - 27
+4m +4m
- 12 = 7m - 27
+27 + 27
15 = 7m
m = 15/7
1. subtract 4 from 8;
4(m+5)=3(m-9)
2. distribute:
4m+20=3m-27
3. subtract 20 to both sides:
4m=3m-47
4. subtract 3m from both sides:
m=-47
4(m+5)=3(m-9)
2. distribute:
4m+20=3m-27
3. subtract 20 to both sides:
4m=3m-47
4. subtract 3m from both sides:
m=-47