Question

7. If AHBN - ALYR, find the value of x.

B
R
*+11
28
Y 21
L
N
H
3x-7

Answer 1

x = 13

Explanation:

I created a proportion from similar sides HB ≈ LY and NH ≈ RL

28/21 = (3x - 7)/(x + 11)

then cross-multiply to get

28(x + 11) = 21(3x - 7)

28x + 308 = 63x - 147

28x = 63x - 455

-35x = -455

x = 13