Question

6.2 Warm Up
The diagram includes a pair of congruent triangles. Use the congruent triangles to find the value of x in the diagram.

Answer 1

1) 5, as they’re the same
2) 15-7, so 8
3)2x+1=5, 2x=4, x=2
4)2x+9 = 3-4x
Combine like terms
6x = -6
X = -1