Respuesta:
5x-40 = -15x+30-10
5x-40 = -15x+(30-10)
5x-40 = -15x+20
5(x-8) = 5(-3x+4)
5(x-8)/5 = 5(-3x+4)/5
x-8 = -3x+4
(1+3)x = 4+8
4x = 12
4x/4 = 12/4
x = 3
Verificación :
5(3)-40 = -15(3)+30-10
15-40 = -45+30-10
15-40 = -45+(30-10)
-25 = -45+20
-25 = -25
R// " X '' vale 3
Explicación paso a paso:
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Verified answer
Respuesta:
5x-40 = -15x+30-10
5x-40 = -15x+(30-10)
5x-40 = -15x+20
5(x-8) = 5(-3x+4)
5(x-8)/5 = 5(-3x+4)/5
x-8 = -3x+4
(1+3)x = 4+8
4x = 12
4x/4 = 12/4
x = 3
Verificación :
5(3)-40 = -15(3)+30-10
15-40 = -45+30-10
15-40 = -45+(30-10)
-25 = -45+20
-25 = -25
R// " X '' vale 3
Explicación paso a paso: