Test
Solving the simplest equations
Solving simple equations typically involves isolating the variable on one side of the equation. Remember to perform the same operation to both sides of the equation to maintain equality.
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Sample questions
- Calculate the value of X
- x + ___ = ___. Find x.
- ___x = ___. Find x.
- Lukas had x stickers. After receiving ___ more, he has ___. How many stickers did he have?
- ___ identical packs cost ___ euros. How much does one pack cost?
Solving simple equations
An equation is a statement of equality containing an unknown. Solving it means finding a value that makes both sides equal. An equation can be viewed as a balance: an operation performed on one side must also be performed on the other.
Inverse operations
- Solve x + a = b by subtracting a.
- Solve x − a = b by adding a.
- Solve a × x = b by dividing by a.
- Solve x ÷ a = b by multiplying by a.
Substitute the resulting value into the original equation. If the left and right sides are equal, the solution is correct. Before choosing an operation, identify how the unknown is connected to the known number.
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