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3z+7by 9=2by8 please answer it fast |
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Answer» ANSWER : (2z−7)−3(3z+8)=4z−9 (2z−7)−(9z+24)=4z−9 (2z−7)−9z−24=4z−9 2z−7−9z−24=4z−9 2z−9z−4z=−9+7+24 2z−9z−4z=−2+24 −11z=22 z= 11 22
z=−2 To CHECK this Putz=−2 (2(−2)−7)−3(3(−2)+8)=4(−2)+−9 (−4−7)−3(−6+8)=−8−9 −11−3(2)=−17 −17=−17
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