+130511 x-5y=7 and 10y=2x+5 rearranging, we have
x - 5y = 7
-2x + 10y = 5 If I multiply the first equation by -2, we have
-2x + 10y = -14 But, notice that the second equation says that -2x + 10y = 5
So this system does not have a solution because the same left sides of two equations can't have a different right side. It's like adding 2 + 3 and getting two different answers !!!!
+130511 x-5y=7 and 10y=2x+5 rearranging, we have
x - 5y = 7
-2x + 10y = 5 If I multiply the first equation by -2, we have
-2x + 10y = -14 But, notice that the second equation says that -2x + 10y = 5
So this system does not have a solution because the same left sides of two equations can't have a different right side. It's like adding 2 + 3 and getting two different answers !!!!
