Question

find m 10 years ago

Answer 1

@Michele_Laino

Answer 2

your triangle is an isosceles triangle, so we can write this:
\[5x + 6 = 8x - 15\]

Answer 3

since the angles at base has to be congruent each other

Answer 4

subtracting 5x from both sides, we get:
\[6 = 3x - 15\]
adding 15, we have:
\[18 = 3x\]
what is x?

Answer 5

oops.. adding 15, we get:
\[21 = 3x\]

Answer 6

what is x?

Answer 7

hint:
x=21/3=...?