Respuesta:
1) 8x + 3y = 79
8x+3y-3y=79-3y
8x=79-3y
8x/8=79/8-3y/8
x=79 - 3y / 8
x=9,5
Explicación paso a paso:
2)-2x-3y=-31
-2x-3y+3y=-31+3y
-2x=-31+3y _x_=+ , -x+= -
-2x/-2=- 31/-2 + 3y/-2
x= - -31+3y/2
x=14
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Verified answer
Respuesta:
1) 8x + 3y = 79
8x+3y-3y=79-3y
8x=79-3y
8x/8=79/8-3y/8
x=79 - 3y / 8
x=9,5
Explicación paso a paso:
2)-2x-3y=-31
-2x-3y+3y=-31+3y
-2x=-31+3y _x_=+ , -x+= -
-2x/-2=- 31/-2 + 3y/-2
x= - -31+3y/2
x=14