Suppose an isosceles triangle has two sides of length 42 and 35, and that the angle between these two sides is 120 degree. what is the length of the third side of the triangle? a. 43.65 b.77 c.58.04 d.66.78

Answer is either b or c

You move the constant to the right side and change its sign to be 9z= -6 -8. that’s the first step.the second step would be calculate the difference of -8-6 to get -14. you equation should now be 9z=-14the last step is to divide both sides by 9 to get z=-14/9hope this