Question

resolver por el metodo de igualacion:

4v-7m=7

2v-4m=2

Answer 1

4v=7+7m
v=7+7m/4

2v=2+4m
v=2+4m/2

2(7+7m)=4(2+4m)
14+14m=8+16m
14m-16m=8-14
-2m=-6
m=-6/-2
m=3

v=2+4m/2
v=2+4(3)/2
v=2+12/2
v=14/2
v=7

prueba:
4(7)-7(3)=7
28-21=7
7=7

2(7)-4(3)=2
14-12=2
2=2