revision of chapters 7, 8, and 9 of the Unit 2 of the Australian senior QCAA exam. for chapter 6, there is another flashcard set of the whole of chapter 6 except for the applied knowledge questions in 6I.
solve 2a + 4 = 7a - 9
a = ¹³⁄₅
solve 5(4 - y) + 2(3y + 1) = 27
y = 5
solve 2 (0.9x + 4) = 8
x = 0
transpose the following equations for the letter indicated in brackets