Question

Si en la figura MN||BC hallar el valor de x

Answer 1

(3x + 4) / 56 = (5x - 10) / 35
35 (3x + 4) = 56 (5x - 10)
35*4 + 56*10 = 56*5x - 35*3x
7*4 + 56*2 = 56x - 7*3x
4 + 8*2 = 8x - 3x
20 = 5x
4 = x