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Answer:
(i) 13x-1=25
13x=25+1
13x=26
x=26/13
x=2
(ii) (12+5)+3=20
17+3=20
20=20
(iii) x-10<10
x>20
(iv) x+2>x+1
x+x=2+1
2x=3
x=3/2
(v) 2y/5-4=0
2y/5=0+4
2y/5=4
2y=4*5
2y=20
y=20/2
y=10
(vi) 2x-3>14
x-5<14
(vii) z+4<7
z+4>7
(vii) 9x-4=14
9x=14-4
9x=10
x=10/9
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Answer:
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