Respuesta :
1) cierto numero = x
3x/2 +5 = x+2(x + 10)
3x/2 +5 = x+ 2x + 20
3x/2 = 3x + 15
3x = 6x +30
x = -10
2) A= 3+3X
L= X
4x + 3 = 63
4x = 60
x = 15
4) B=4x
N=x
4x-10=3x
x=10
3x/2 +5 = x+2(x + 10)
3x/2 +5 = x+ 2x + 20
3x/2 = 3x + 15
3x = 6x +30
x = -10
2) A= 3+3X
L= X
4x + 3 = 63
4x = 60
x = 15
4) B=4x
N=x
4x-10=3x
x=10