Explicación paso a paso:
a) calcular el perímetro:
rectángulo: P = 2(x - 1) + 2 + 2(x - 1) + 2 =
P = 2x - 2 + 2 + 2x - 2 + 2 =
P = 4x
Triángulo:. P = x + 2 + x + 1 + x =
P = 3x + 3
P = 3(x + 1)
b) las ecuaciones son diferente
4x no es igual 3x + 3
c) 4x = 0
x = 0/4
x = 0
3x + 3 = 0
3x = -3
x = -3/3
x = - 1
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Explicación paso a paso:
a) calcular el perímetro:
rectángulo: P = 2(x - 1) + 2 + 2(x - 1) + 2 =
P = 2x - 2 + 2 + 2x - 2 + 2 =
P = 4x
Triángulo:. P = x + 2 + x + 1 + x =
P = 3x + 3
P = 3(x + 1)
b) las ecuaciones son diferente
4x no es igual 3x + 3
c) 4x = 0
x = 0/4
x = 0
3x + 3 = 0
3x = -3
x = -3/3
x = - 1