damaniquejames damaniquejames

23-01-2020
Mathematics

contestada

negative 3x plus 8 subtract negative 5x equals 21 subtract 8x

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jpyon3019 jpyon3019

23-01-2020

-3x+8-(-5x)=21-8x
-3x+8+5x=21-8x
2x+8=21-8x
10x=13
x=1.3

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