Solve the following system of equations. express your answer as an ordered pair in the format (a, b), with no spaces between the numbers or symbols
2x+7y=-1 and 4x-3y=-19

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

If 3x+8=3x+8 is it one solution or no solution

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?