What is the solution to the given system of equations?

y=4x-3

y=-x-13

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr

Given the diagram below, michael writes, "segment ac is congruent to segment ac." which of the following reasons allow him to write this statement?