Respuesta :
16x = 50 - 14y
-7x = 77 - 14y
Rewrite the first equation.
Multiply the second equation by -1 and write under the first equation.
Then add the equations.
16x = 50 - 14y
7x = -77 + 14y
Add to get:
23x = -27
x = -27/23
Now substitute this value of x in the first original equation and solve for y.
16x = 50 - 14y
16(-27/23) = 50 - 14y
-432/23 = 1150/23 - 14y
-1582/23 = -14y
y = 113/23
-27/23, 113/23
-7x = 77 - 14y
Rewrite the first equation.
Multiply the second equation by -1 and write under the first equation.
Then add the equations.
16x = 50 - 14y
7x = -77 + 14y
Add to get:
23x = -27
x = -27/23
Now substitute this value of x in the first original equation and solve for y.
16x = 50 - 14y
16(-27/23) = 50 - 14y
-432/23 = 1150/23 - 14y
-1582/23 = -14y
y = 113/23
-27/23, 113/23