Question

I need help please and thank you

Solve for X

Answer 1

12

Explanation:

The large triangle is 4 times the size of the smallest one.

17*4=68, 8*4=32, and 15*4=60.

We know what the side length is now, so we set up an equation.
60=4x+12
Subtract 12 from both sides.
60-12=4x+(12-12)
48=4x
Divide
48/4=4x/4
12=x