Solving Two-Step Equations
Grade 8 · Math · Linear Equations · Washington, USA
Lesson Summary
Solve equations that require two operations to isolate the variable.
Explanation
Two-step equations need two moves to solve. You usually start by undoing any addition or subtraction, then undo any multiplication or division. Think of it as peeling away layers to get to the variable. For example, to solve 2x + 3 = 11, first subtract 3 from both sides to get 2x = 8, then divide both sides by 2 to get x = 4.
Practice Questions
Q1: Solve for x: 3x + 5 = 20
Answer: x = 5. Subtract 5 from both sides to get 3x = 15, then divide by 3 to get x = 5.
Q2: Solve for m: m/4 − 2 = 3
Answer: m = 20. Add 2 to both sides to get m/4 = 5, then multiply by 4 to get m = 20.
Q3: Solve for y: 7y − 1 = 48
Answer: y = 7. Add 1 to both sides to get 7y = 49, then divide by 7 to get y = 7.
People Also Ask
What is Solving Two-Step Equations in Grade 8 Math?+
Solving Two-Step Equations is a lesson in the Linear Equations chapter of Grade 8 Math. It is part of the Washington, USA school curriculum and covers key concepts that students need to understand at this level.
What grade level covers Solving Two-Step Equations?+
Solving Two-Step Equations is taught in Grade 8 as part of the Math curriculum in Washington, USA.
How can I help my child with Linear Equations in Math?+
Start with the lesson summary and explanation on this page. Practice the questions provided, then use TutorTom for personalized, step-by-step help with Linear Equations topics.