X = 49 - 6X = 43
Y = 28 + 50Y = 78
74 - X = 3074 - 43 = 3031 = 30
So, the solutions are:X = 43Y = 78The last equation does not have a valid solution.
X = 49 - 6
X = 43
Y = 28 + 50
Y = 78
74 - X = 30
74 - 43 = 30
31 = 30
So, the solutions are:
X = 43
Y = 78
The last equation does not have a valid solution.