1- si x = 3 , entonces el valor de la expresion 2(3x + 9) es
2- resuelve para x ; 4x - 12 = 2x + 12
1. 2(3(3)+9)= 2(9+9)=2(18)=36
2.
4x-12=2x+12
4x-2x=12+12
2x=24
x=24/12
x=12
comprobacion
4(12)-12=2(12)+12
48-12=24+12
36-36
suerte!1
ResovienDo:
si "x" = 3 , Reemplazamos en la ecuación :
2[ (3).3 +9) = 2. ( 18) = 36
- Resolvemos "x"
4x - 2x =12 +12
2x = 24
x = 12
Suerte :)
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1. 2(3(3)+9)= 2(9+9)=2(18)=36
2.
4x-12=2x+12
4x-2x=12+12
2x=24
x=24/12
x=12
comprobacion
4(12)-12=2(12)+12
48-12=24+12
36-36
suerte!1
ResovienDo:
si "x" = 3 , Reemplazamos en la ecuación :
2[ (3).3 +9) = 2. ( 18) = 36
- Resolvemos "x"
4x - 2x =12 +12
2x = 24
x = 12
Suerte :)