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Examples
a + a = 2a 4b + 3b = 7b 8x + 5x = 13x a + a + b = 2a + b 2b + b + c = 3b + c 5x + 6x + y = 11x + y Put like terms together
2a + b + a = 2a + a + b = 3a +b 5b + y + 3b = 5b + 3b + y = 8b + y Letters are usually put in alphabetical order
3w + 8x + 7x = 8x + 7x + 3w = 15x + 3w 2t + 4a - a = 4a - a + 2t = 3a + 2t It is often easier to work by putting
the positives of each before the negatives - 7b + 2b + a = a + 2b - 7b = a - 5b - 2x - z + x = x - 2x - z = - x - z |