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I need help with this

I need help with this-example-1
User Kerruba
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7x-9 < 12 add 9 to both sides 7x < 21 divide both sides by 7 X < 3 X is less than 3 1/4x+8 > 11 subtract both sides by 8 1/4x > 3 multiply both sides by 4 X > 12 X is greater than 12 X <3 or X > 12
User Victor Domingos
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