Fully worked, step-by-step solutions to GCSE Algebraic vocabulary questions. See exactly how to solve problems on expression, equals sign, equation, terms.
Look for an equals sign
Scan the statement: there is no = sign anywhere.
Recall the definition
An expression is just a collection of terms with no equals sign.
State the answer
So 3x + 5 is an expression.
Look for an equals sign
There is an = sign in the statement.
Recall the definition
An equation has an equals sign and is true only for particular value(s) of the letter.
State the answer
So is an equation.
Terms are separated by + or - signs
Split the expression at each + or - sign.
List the terms
The parts are 2x, 3y and -5.
Count them
There are 3 terms.
Find the term in x
The term containing x is 7x.
The coefficient is the number multiplying x
The number in front of x is 7.
State the answer
The coefficient of x is 7.
Look at the features
It has an = sign and links two different letters, A and r.
Recall the definition
A formula has an equals sign and links two or more different letters (variables).
State the answer
This is the formula for the area of a circle.
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