Answer:
Explanation:
Because all the angles of the triangle are the same, all the sides are the same. This means that the side that equals 2x+11 is the same length as the side that equals 6x-9. The next step is to make an equation out of these expressions. Because we know they are equal to the same amount, we can write 2x+11=6x-9. The step after that is to separate the variables into one side so we subtract 2x from both sides, and we get 11=4x-9. After that we have to get all the non variables onto one side so we add 9. This gets us the equation 20=4x so we divide 20 by 4 to get 5=x
Therefore the answer to this question is: the variable x equals 5.