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math456 Group TitleBest ResponseYou've already chosen the best response.0
multiply first! 9z1220z+5 then solve!
 2 years ago

kelly541 Group TitleBest ResponseYou've already chosen the best response.0
Use the distributive property: 3(3z4)  (20z5) = 9z12  (20z5) Since there is a "' sign in front of the second half of the expression, the signs will change 9z12 20z+5 Simplify the rest: 11z  7
 2 years ago
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