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To solve a linear equation, isolate the variable by doing the same operation to both sides. First simplify each side: distribute to remove parentheses and combine like terms. Then move all terms containing to one side and all constant terms to the other by adding or subtracting. Finally divide by the coefficient of . For example, if you reach , divide both sides by to get . Check your answer by substituting it back into the original equation.
Practice
1.4 billionEndless problems made on demand, each with an exactly computed answer. Every click is a new one.
Curated
13| # | Title | Difficulty | Source | Tags | |
|---|---|---|---|---|---|
| 103 | One step at a time | Easy | Lemma | ||
| 740 | Clear the fractions | Easy | Lemma | ||
| 741 | A decimal coefficient | Easy | Lemma | ||
| 742 | A line through two points | Easy | Lemma | ||
| 743 | Brackets on both sides | Easy | Lemma | ||
| 930 | Numbers in a given ratio with a difference | Easy | Hall & Knight | ||
| 1175 | Multiplying Complex Surds | Easy | Hall & Knight | ||
| 1176 | Difference of Two Squares with Complex Numbers | Easy | Hall & Knight | ||
| 1177 | Exponential Complex Expression Product | Easy | Hall & Knight | ||
| 1178 | Quadratic Factor with Complex Roots | Easy | Hall & Knight | ||
| 1179 | Rationalizing a Complex Denominator | Easy | Hall & Knight | ||
| 1529 | Number of Terms in Trinomial Expansion | Easy | Hall & Knight | ||
| 1530 | Sum of Coefficients in Trinomial Expansion | Easy | Hall & Knight |
From open sources
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