Worksheets / Math / Solving 3x3 Systems by Substitution (Part 1) Solving 3x3 Systems by Substitution (Part 1) Worksheet by Daryl Garcia Subjects Math Grades Grade 10 , Grade 11 , Grade 9 Language ENG Assignments 23 classrooms used this worksheet Solving 3x3 Systems by Substitution (Part 1) algebra equations systems of equations substitution method Educational Standards CCSS CCSS.MATH.CONTENT.HSA.REI.C.6 CCSS CCSS.MATH.CONTENT.HSA.CED.A.2 Make it yours