40m+3p=-10 3p=-10-40m p=(-10-40m)/3
20m-7p=-5
20m-7(-10-40m)/3=-5
20m+(70+280m)/3=-5
60m+70+280m=-15
340m=-85
m=-85/340=-1/4 p=(-10-40*(-1/4))/3
p=(-10+10)/3
p=0/3
p=0
40m+3p=-10 3p=-10-40m p=(-10-40m)/3
20m-7p=-5
20m-7(-10-40m)/3=-5
20m+(70+280m)/3=-5
60m+70+280m=-15
340m=-85
m=-85/340=-1/4 p=(-10-40*(-1/4))/3
p=(-10+10)/3
p=0/3
p=0