Name _________________________________________ Period _____ Date ______________________
Assignment #15D: Substitution Method Practice
Yesterday, we began looking at the substitution method as a way to algebraically solve a system of equations. Today, we
continue to practice the substitution method and practice solving “classic” word problems.
Section 0: Solve the linear system by using substitution. Be strategic about isolating your variable…
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1.
3.
Section 1: Solve each problem. Remember: (1) Define your variables. (2) Write equations involving
your variables [consider a “value” equation and a “number” equation]. (3) Solve.
4. From yesterday’s classwork…
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6.
1
Algebra 1
Name _________________________________________ Period _____ Date ______________________
 pp.239-242 (4-6, 19, 38, 40); p.475 (5)
Solve the linear system by
graphing. Check your solution.
Solve the inequality and graph your solution.
2
Algebra 1