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Mathematics 7 Online
OpenStudy (anonymous):

What is the value of the expression when a = 8 and b = 3?http://static.k12.com/bank_packages/files/media/mathml_330ce7efb96c2952bc4018fc51d463c2170db99a_1.gif

OpenStudy (pottersheep):

Ok so 4(2a-6)+8b

OpenStudy (pottersheep):

plug in 8 wherever there is an a and 3 wherever there is a b

OpenStudy (pottersheep):

4(2a-6)+8b = 4 (2*8 - 6) + 8*3 = 4(16-6) + 24 = 4(10)+24 =40+24 =64

OpenStudy (anonymous):

thank you ( :

OpenStudy (pottersheep):

Happy to help :)

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