© Boardworks Ltd 2006 17 of 60 Collecting together like terms Remember, in algebra letters stand for numbers, so we can use the same rules as we use f
{"Image DocumentName": "Collecting together like terms", "Image ImageDescription": "Remember, in algebra letters stand for numbers, so we can use the same rules as we use for arithmetic. In arithmetic, 2 + (6 \u00d7 2) \u2013 (3 \u00d7 2) = 4 \u00d7 2. In algebra, x + 6x \u2013 3x = 4x. In arithmetic, a number plus 6 \u00d7 the same number minus 3 \u00d7 the same number = 4 \u00d7 the number. Discuss the algebraic equivalent of this. Emphasize that x can be any number. Again, we are using algebra to generalize a result rather than to give an answer to a specific problem. x, 6x, 3x and 4x are like terms. They all contain a number and the letter x.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}