Question

ayuda por favor es urgente​

Answer 1

Explicación paso a paso:

a)

perímetros:

∆:

P = x + x+1 + x+2

P = 3x + 3

P = 3(x+1)

⌨️:

P = 2 + 2 + 2(x-1) + 2(x-1)

P = 2(2) + 2{2(x-1)}

P = 4 + 2{2x - 2}

P = 4 + 4x - 4

P = 4x

b)

3(x+1) = 4x

c)

3x + 3 = 4x

3 = 4x - 3x

x = 3