Answer:
x = 3
Step-by-step explanation:
This is an explain in forming and solving a system of linear equations.
If the triangles are congruent, the corresponding sides are congruent as well.
So we form equations by equating equal quantities.
13 = 4x+1 ........................(1)
2x+y = 8x-2y................. (2)
From (1), we find
13=4x+1
subtract 1 from each side,
13-1 = 4x+1 -1
12 = 4x
Divide each side by 4
12/4 = 4x/4
3 = x
Therefore x=3
We don't need to worry about y or the second equation because we have already obtained the required answer.
