erica1232 erica1232

10-07-2017
Mathematics

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solve for x: 2×x+b=9 b=1

Respuesta :

10-07-2017

2x + b = 9 when b = 1
2x + 1 = 9
subtract 1 from both sides
2x = 8
divide both sides by 2
x = 4

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BrainIess BrainIess

10-07-2017

[tex] 2x+b=9 \\ \\ 2x+1=9 \\ \\ 2x=9-1 \\ \\ x= { \frac{8}{2} } \\ \\ x=4 [/tex]

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