Simplify the expression.
$- 4 z - 6 - 7 z + 3$

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Solution

$- 4 z - 6 - 7 z + 3 = (- 4 z) + (- 6) + (- 7 z) + 3 {R e w r i t e a s s u m} = (- 4 z) + (- 7 z) + 3 + (- 6) {C O m m u t a t i v e p r o p e r t y} = [{- 4 z} + (- 7 z)] + [3 + (- 6)] {G r o u p s l i k e t e r m s} = (- 11 z - 3) {C o m b i n e l i k e t e r m s}$
Final Answer: $(- 11 z - 3)$

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