exam Maths Puzzle Numerical Ability

Please help me solve this equation.

Change the equation,x-y=4 to the form y=mx+b.

Thank you!

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exam Other Question

Perform order of operation. Please show me how for this one. thanks!

(X-4) (X+7) One carpenter can complete a kitchen in 8 days. With the help of another carpenter, they can do the job toegether in 4 days. How long would it take the second carpenter if he worked alone?

Would you set it up like this?

x/4-x/8=1