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22-02-2017
Mathematics

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math help please =)

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Insanity Insanity

22-02-2017

2x - 3 < 11 or 8x -10 < 82: X < 23/2

Part 1
2x-3<11
Add 3 both sides
2x-3+3<11+3
Refine
2x<14
Divide by 2 on both sides
2x / 2 / 14 / 2
Refine
x < 7

Part 2
8x-10<82
Add 10 to both sides
8x-10+10<82+10
Refine
8x<92
Divide by 8
8x / 8 / 92 / 8
Refine
x < 23 / 2

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