Solve equations with instant feedback. Each problem is randomly generated — practice until you master it.
Solve equations like 3x = 12 or x + 5 = 8
Solve equations like 2x + 3 = 11
Expand expressions like 3(x + 4) = 21
Simplify expressions like 2x + 3x + 5 = 20
Algebra is the foundation of higher mathematics. These practice exercises will help you master the essential skill of solving equations — finding the value of an unknown variable.
These equations require just one operation to solve. You'll practice isolating the variable by using inverse operations.
Example:
3x = 12
To solve, divide both sides by 3: x = 4
These require two operations. Typically, you'll undo addition/subtraction first, then multiplication/division.
Example:
2x + 5 = 13
Step 1: Subtract 5 → 2x = 8
Step 2: Divide by 2 → x = 4
When a number multiplies a group in parentheses, multiply it by each term inside.
Example:
3(x + 2) = 15
Distribute: 3x + 6 = 15
Then solve: x = 3
Add coefficients of the same variable together before solving.
Example:
2x + 4x + 3 = 15
Combine: 6x + 3 = 15
Then solve: x = 2