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David Simanjuntak

@Dapidtello

Ketawalah Sebelum Diketawain hahahaha

David Simanjuntak reposted

1) Adding the two equations gives: 2A = 160 2)Solve for A by dividing both sides by 2: A = 160÷2 = 80 3) Solve for B using first equation, Substitute A = 80 into A + B = 80 This yields : 80 + B = 80 4) Subtract 80 for both sides: B = 80 - 80 = 0 5)Calculate AB AB = 80*0 = 0


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