How to Solve One-Step Equations? (+FREE Worksheet!)
Solving one-step equations is simple. Following the following steps to solve one-step equations easily.
Related Topics
- How to Solve Multi-Step Equations
- How to Solve One-Step Inequalities
- How to Solve Multi-Step Inequalities
- How to Solve Systems of Equations
- How to Graph Single–Variable Inequalities
Step-by-step guide to solve one–step equations
- The values of two expressions on both sides of an equation are equal. \(ax \ + \ b=c\)
- You only need to perform one Math operation to solve the one-step equations.
- To solve the one-step equation, find the inverse (opposite) operation is being performed.
- The inverse operations are:
Addition and subtraction
Multiplication and division
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One–Step Equations – Example 1:
Solve this equation. \(2x=16, x=?\)
Solution:
Here, the operation is multiplication (variable \(x\) is multiplied by \(2\)) and its inverse operation is division. To solve this equation, divide both sides of the equation by \(2\):
\(2x=16→ 2x \ ÷ \ 2=16 \ ÷ \ 2→x=8\)
One–Step Equations – Example 2:
Solve this equation. \(x \ + \ 12=0, x=?\)
Solution:
Here, the operation is addition and its inverse operation is subtraction. To solve this equation, subtract \(12\) from both sides of the equation: \(x \ + \ 12=0\) → \(x \ + \ 12 \ − \ 12=0 \ − \ 12 \)
Then simplify: \(x \ + \ 12 \ − \ 12=0 \ − \ 12 → x=− 12 \)
One–Step Equations – Example 3:
Solve this equation. \( x+24=0 ,x=\) ?
Solution:
Here, the operation is addition and its inverse operation is subtraction. To solve this equation, subtract \(24\) from both sides of the equation: \( x+24=0\) → \(x+24-24=0-24 \)
Then simplify: \(x+24-24=0-24 → x=-24 \)
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One–Step Equations – Example 4:
Solve this equation. \( 3x=15,x=\)?
Solution:
Here, the operation is multiplication (variable \(x\) is multiplied by \(3\)) and its inverse operation is division. To solve this equation, divide both sides of the equation by \(3\):
\( 3x=15→3x÷3=15÷3→x=5\)
Exercises for Solving One-Step Equations
Solve each equation.
- \(\color{blue}{x + 3 = 17}\)
- \(\color{blue}{22 = (– 8) + x}\)
- \(\color{blue}{3x = (– 30)}\)
- \(\color{blue}{(– 36) = (– 6x)}\)
- \(\color{blue}{(– 6) = 4 + x}\)
- \(\color{blue}{2 + x = (– 2)}\)
Download One-Step Equations Worksheet
Answers
- \(\color{blue}{14}\)
- \(\color{blue}{30}\)
- \(\color{blue}{-10}\)
- \(\color{blue}{6}\)
- \(\color{blue}{-10}\)
- \(\color{blue}{-4}\)
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