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Edexcel IGCSE Math A 2.4.A Linear Equations in One Unknown

Practise solving linear equations with integer or fractional coefficients and unknowns on one or both sides.

Exam points

expand brackets and collect all unknown terms on one side
clear fractional coefficients using a common multiple before rearranging
show equivalent algebraic steps and verify fractional or decimal solutions by substitution

[Maximum number: 3]

(a)

Solve $\frac{k}{4}=7$

k=

[ 1 ]

$\frac{k}{4}=7$ k=28

Final answer:
28

(b)

Solve 2 g-3=6

g=

[ 2 ]

2g-3=62g=9 $g=\frac92=4.5$

Final answer:
4.5

Equivalent answers such as $\frac92$ or $4\frac12$ are accepted.

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