3/5 x + 156 = p + 2/5 x
3/5 x - 2/5 x = p + 156 - 2/5 x
1/4 x = p + 156 - 250
1/4 x = p - 94
4/4 x = 4p - 376
x = 4p - 376
p = (x + 376)/4
3/5 x + 156 = p + 2/5 x
1/4 x + 250 = p + 3/4 x
solve that, and finish it off.
3 answers
AAAaannndd the bot gets it wrong yet again!
rewrite the two equations as
x-5p = -780
x+2p = 500
subtract to get 7p = 1280 so p = 1280/7
x = 500-2p = 940/7
rewrite the two equations as
x-5p = -780
x+2p = 500
subtract to get 7p = 1280 so p = 1280/7
x = 500-2p = 940/7
The bot is wrong again, started messing up in the second line
correct solution:
3/5 x + 156 = p + 2/5 x ----> 3x/5 - 2x/5 + 156 = p
x/5 + 156 = p
1/4 x + 250 = p + 3/4 x ---> 1/4 x - 3/4 x + 250 = p
-x/2 + 250 = p
then :
x/5 + 156 = -x/2 + 250
x/5 + x/2 = 94
7x/10 = 94
7x = 940
x = 940/7
from p = x/5 + 156
p = 1280/7
correct solution:
3/5 x + 156 = p + 2/5 x ----> 3x/5 - 2x/5 + 156 = p
x/5 + 156 = p
1/4 x + 250 = p + 3/4 x ---> 1/4 x - 3/4 x + 250 = p
-x/2 + 250 = p
then :
x/5 + 156 = -x/2 + 250
x/5 + x/2 = 94
7x/10 = 94
7x = 940
x = 940/7
from p = x/5 + 156
p = 1280/7