7ab - b x 7 x a , 14ab - a x 2 x 7 x b , 6ab - 2 x b x 3 x a, 5ab - 2ab + 3ab , 20st - 5 x t x s x 4 , 40g - 10 x 4g, 14g - 20g + 4g - 10g , 56cd - 7 x c x 8 x d , 48cd - 6 x d x 4 x 2 x c, 42mp - 6 x 7 x p x m , 42p - 50p - 8p , -10h - 40h - 50h , 10h - 50h - 40h , -42mp - 6 x (-m) x 7 x p , 88ft - 8f x 11t, 54cd - 6 x c x 3 x d x 3 , -20st - (-5) x t x 4 x s , 9ab - 3 x 3ab , 54cde - 9 x c x 6 x e x d , 5a - 6b  - 10a - 11b - 5a + 5b ,

Simplifying algebraic expressions 1

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