Is 15miles and26miles and 8miles is this a unique triangle

No. It is not a triangle

Step-by-step explanation:

The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side

this is not a triangle since the sum of the two smaller sides is less than the third side

8 + 15 < 26

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3

5.5

step-by-step explanation: