Answer:
BC = 25units
Step-by-step explanation:
The image indicates that:
∡ABC = ∡BCA
then this triangle is a isosceles triangle
then:
AB = AC
4x + 4 = 6x - 14
4 + 14 = 6x - 4x
18 = 2x
x = 18/2
x = 9
then:
BC = 2x + 7
BC = 2*9 + 7
BC = 18 + 7
BC = 25 Units
