State whether the following is true or false
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chundawat998:
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a) 23 -(-21) = 23 + 21
• 23 + 21 = 23 + 21
therefore it is TRUE
b) 23 + ( -21) < ( -23 ) + 21
• 23 - 21 < -23 + 21
• 2 < -2
therefore it is FALSE
c) (-5) + (-6) + (-7) > 7 - 77
• -5 - 6 - 7 > - 70
• - 18 > - 70
therefore it is TRUE
d) (-100) + (99) + (-1) = 97 - 99 + 4
• 99 - 101 = 101 - 99
• -2 = 2
therefore it is FALSE
e) 56 - (49 - 7 ) <( 66 -49) - (-7)
• 56 - 42 < 17 + 7
• 14 < 24
therefore it is TRUE
f) 13 - 31 > 3 - 31 - 31
• - 18 > - 59
therefore it is TRUE.
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• 23 + 21 = 23 + 21
therefore it is TRUE
b) 23 + ( -21) < ( -23 ) + 21
• 23 - 21 < -23 + 21
• 2 < -2
therefore it is FALSE
c) (-5) + (-6) + (-7) > 7 - 77
• -5 - 6 - 7 > - 70
• - 18 > - 70
therefore it is TRUE
d) (-100) + (99) + (-1) = 97 - 99 + 4
• 99 - 101 = 101 - 99
• -2 = 2
therefore it is FALSE
e) 56 - (49 - 7 ) <( 66 -49) - (-7)
• 56 - 42 < 17 + 7
• 14 < 24
therefore it is TRUE
f) 13 - 31 > 3 - 31 - 31
• - 18 > - 59
therefore it is TRUE.
______________________________
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