Respuesta :
Step-by-step explanation:
x+y=-12
x-y=-2
solve by simultaneous equations multiply the second equation by -1
-x-y=2
subtract both equations
y=10
x+10=-12
×=-22
Answer:
-7 and -5
Step-by-step explanation:
a + b = -12
a - b = -2
2a = -12 + -2 = -14 ----> a = -7
-7 + b = -12 ---> b = -5
