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Solving two-step linear equations using addition and subtraction: ax+b=c
- Lesson: 1a3:56
- Lesson: 1b4:13
- Lesson: 2a3:55
- Lesson: 2b3:32
- Lesson: 3a2:52
- Lesson: 3b2:09
- Lesson: 3c1:44
- Lesson: 3d1:40
- Lesson: 45:23
Solving two-step linear equations using addition and subtraction: ax+b=c
In this section, we will look at linear equation questions which involve two kinds of operations: addition and subtraction. We will deal with two-step linear equations modeled by diagrams as a start. Then, we will learn how to solve algebraic equations and related word problems.
Basic Concepts: Understanding integer division, Model and solve one-step linear equations: ax=b, ax=b
Related Concepts: Solving linear equations using multiplication and division, Solving two-step linear equations: ax+b=c, ax+b=c, Solving linear equations using distributive property: a(x+b)=c, Solving linear equations with variables on both sides
Lessons
- 1.Find x in the equation modelled by each diagram.a)
b)
- 2.Find x in the equation modelled by algebra tiles.a)
b)
- 3.Solve.a)7x+9=21b)98−2x=14c)−35=6x+49d)−4x−11=109
- 4.The total admission fee of an aquarium for 30 students is $240 after a group discount of $3 for each person. What is the original admission fee before the discount?
Do better in math today
16.
Linear Equations
16.1
Model and solve one-step linear equations: ax=b, ax=b
16.2
Solving two-step linear equations using addition and subtraction: ax+b=c
16.3
Solving two-step linear equations using multiplication and division: ax+b=c
16.4
Solving two-step linear equations using distributive property: a(x+b)=c