mapboy9
mapboy9
15-03-2017
Mathematics
contestada
Solve by addition ANSWER NOW
Respuesta :
texaschic101
texaschic101
15-03-2017
-3x + y = 3
3x + 2y = -12
-----------------add
3y = - 9
y = -9/3
y = -3
3x + 2y = -12
3x + 2(-3) = -12
3x - 6 = -12
3x = -12 + 6
3x = - 6
x = -6/3
x = -2
solution is (-2,-3)
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