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28-01-2021
Mathematics

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Eight times a number plus five times another number is -13. The first number equals 1 minus the second number. What are the numbers.

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justinzheng421 justinzheng421

28-01-2021

Answer:

3X+5Y=68 MULTIPLY BY 4

3Y-4X=6 MULTIPLY BY 3 & ADD.

12X+20Y=272

-12X+9Y=18

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29Y=290

Y=290/29

Y=10 ANS.

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