Answer:
BC = 25
Step-by-step explanation:
This is an isosceles triangle, so AB = AC
4x+4 = 6x-14
Subtract 4x from each side
4x -4x+4 = 6x-4x-14
4 = 2x-14
Add 14 to each side
4+14 = 2x-14+14
18 = 2x
Divide by 2
18/2 =2x/2
9 =x
Now we can find BC
BC =2x+7
=2(9)+7
= 18+7
= 25
