-9 x > 27 x=? What is x?

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Solve 2x+y=3 x+y=5 in substitution method