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ii) 10x-5-7x=5x+15-8
= 3x-5=5x+7
=-5+7=5x-3x
=2=2x
= x=1
iii) 5x-3x=18
2x= 18
x= 9
the numbers are 5×9=45 and 3×9=27
iv) (x)+(x+1)+(x+2)=51
3x +3=51
3x=48
x= 16
the integers are 16,17,18.
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