Answer:
The value of x is 3
Step-by-step explanation:
Here, we want to find the value of x
to do this, we apply the principle of similar triangles
That would work as follows;
4/x + 5 = 7/(2x + x + 5)
4/x + 5 = 7/3x + 5
4(3x + 5) = 7(x + 5)
12x + 20 = 7x + 35
12x - 7x = 35-20
5x = 15
x = 15/5
x = 3
