Printable worksheet · 3 of 4

Choose which quantity is the subject - Paper 3

Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.

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Formula: T = 9a + 2b. Make a the subject by first subtracting the whole 2b term, then dividing by 9. For a numerical check use b = 4 and T = 26. Also compare the general formula T = ka + mb, where dividing by k needs k not equal to zero.

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