RomariR433198 RomariR433198

03-11-2022
Mathematics

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-a+9bA=4B= - 4 I forgot how this thing works? Please someone help!

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DeriyahG486801 DeriyahG486801

03-11-2022

-a+9b

a=4

b=-4

Replace a by 4 and b by -4 in the expression, then solve it

-(4)+9(-4)

-4 -36

-40

Answer Link

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