AlgebraEasy
Linear equations in one variable
Solve and interpret linear equations with a single unknown, including equations with fractions, decimals, and variables on both sides.
Sample SAT Problem
If 3x + 7 = 22, what is the value of x?
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Step-by-Step Solution
x = 5. Subtract 7 from both sides: 3x = 15, then divide by 3.
Key Tips from Pamela
- Isolate the variable by doing the same operation to both sides.
- Watch for questions that ask for expressions like 2x + 1 rather than x alone.
- Check your answer by substituting back into the original equation.
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