Question

resolva as seguintes sistemas de equaçoes
x+y=10
x-y=6

Answer 1

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Ola Thamy

x + y = 10
x - y = 6

2x = 16
x = 8

8 + y = 10
y = 2

pronto

Answer 2

x+ y = 10
x-y =     6
2x =    16

x= 16/2
x= 8

8 +y =10
y =-8 + 10
y= 2

V={ 2,8}