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How do you solve simultaneous equations by elimination?
Make the coefficient of one letter the same in both equations, then add or subtract the equations to remove that letter. Solve for the letter that is left, then…
How do you write a formal letter?
A formal letter has a set layout: your address and the date at the top right, the recipient's address on the left, a formal greeting, a heading, clear paragraphs and a…
How do you answer a summary question in an English exam?
Read the question to see exactly what information is asked for, find the relevant points in the passage, then rewrite each point in your own words as one short, complete…
What is double-entry bookkeeping?
Double-entry bookkeeping records every transaction twice: once as a debit in one account and once as a credit in another, for the same amount. This keeps the accounting…
What is a trial balance and why is it prepared?
A trial balance is a list of all the ledger account balances at a given date, with debit balances in one column and credit balances in the other. Because of double…