Question

please please help me with these questions​

Answer 1

1.a-( -b) =a+b

a.a=75. b=84

75-(-84)

=75+84

=159

b. a=118. b=125

118-(-125)

=118+125

= 143

c. a=25 b=30

25-(-30)

=25+30

=55

2. a.sum is -3

=(-8 ,-5) , (-7,4)

b. sum is 0

= (-3,3) ,. (-5,5)

c. difference is 2

= (-5,-3) , (1,-1)

d. difference is(-5)

= (-4,-9) , (-8, -3)

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Answer 2

Answer:

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