Solve the system by substitution
-x - y - z= -8
-4x + 4y + 5z = 7
2x + 2z = 4

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

Me #1 using vocabulary words, including the word “congruent”, state why the measure of angle d is 120 degrees. #2 what is the measure of angle e and why?

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =