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Since the first sentence states that one number is 4 times as large as another, the numbers can be represented as x and 4x. A few important phrases are described below that can give us clues for how to set. Preface this book is a modi ed version of the open source precalculus project initiated by carl stitz and je seager. Algebra with reasoning year 1 year 2 year 3 year 4 year 5 year 6 equations solve onestep problems that involve addition and subtraction, using concrete objects and pictorial representations, and missing number problems such as 7 9 copied from addition and subtraction recognise and use the inverse relationship between. If the larger number is negative, the answer is negative. The ability to work comfortably with negative numbers is essential to success in algebra.
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