15-10-2014
Mathematics

contestada

-7(n+3)-8(1+8n)
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Vincenzo Vincenzo

15-10-2014

-7n-21-8-64n distributive property -7n-64n-29 commutative property -51n-29 combine like terms

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jack9nguyen7 jack9nguyen7

15-10-2014

takes -7multiplies the term n + 3. we have -7n -21. and -8 multiplies each term of 1+ 8n we have : -8 -64n.

here are numbers :
-7(n+3) - 8(1 + 8n)
-7n -21 -8 -64n= 0 (then take all the number to the other side. = 21 +8 = 29)
-81n = 29
n = 29/ -81

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