exam Maths Puzzle Numerical Ability

9x-3y=24
7x-3y=20
using the elimination method

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exam Other Question

Please help me with this statement.

Write each compound statement in symbolic form.


#2 You're staying and I'm leaving.


#4 I'm leaving and you're staying.

These are
Marge can paint her house in 12 hours. If John helps her it takes them 9 hours. How long does it take John to paint the house by himself