1. (10 points) Explain how you solve the following system of linear equations by graphing, substitution, and elimination: X + 2y = 63x - y = 4

Please hurry!

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.

Landon wrote that 3−2.6=4. which statement about his answer is true?

Having a hard time understanding this question (see attachment).