Use substitution to solve the system of equations. Pick two equations to solve. 1. x - 2y + 3z = 7
2x + y + z = 4
-3x + 2y – 2z = -1

Solution:

2. 2x + 2y + 2z = 2
x + 2y + 3z = 8
3x + 4y + z = 2

Solution:

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

Using elimination, what is -4x+2y=-12 4x+8y=-24

Acaterer charges $500 plus $30 per guest to cater a wedding. walt and traci don't want to spend more than $8000 on catering. write and solve an inequality in terms of the number of guests, g, that can be invited. a) 30g ? 8000; g ? 267 b) 500g < 8000; g < 16 c) 500 + 30g < 8000; g < 250 d) 500 + 30g ? 8000; g ? 250