A17­2SolvingSystemsSubstitution.notebook
November 23, 2015
Using Substitution
Algebra 1
Ch.7 Notes Page 41
P41 7­2 Solving Systems Using Substitution
Sep 2­8:31 AM
Trying to find an x and y that works in both equations
Solve for x and y
y = ­4x + 8
y = x ­ 7
Jan 23­8:15 AM
Substitution and Distribution Solve using Substitution
Practice
3y + 2x = 4
­6x + y = ­7
7x ­ y = 15
y = 2x
Feb 5­8:43 AM
Practice
7x ­ 8y = 112
y = ­2x + 9
Feb 5­8:43 AM
Word Problem
.5x + .25y = 36
y + 18 = 16x
Your school is planning to bring 193 people to a competition at another school. There are eight drivers available and two types of vehicles, school buses and minivans. The school buses seat 51 people each, and the minivans seat 8 people each. How many buses and minivans will be needed?
Let b = buses
Let m = minivans
Feb 5­8:48 AM
Feb 5­8:43 AM
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