-69 + 22 = -47
-72 - (-7) = -72 + 7 = -65
-47 + (-65) = - 47 - 65 = -112
(-69 + 22 )+ (-72-(-7)) = -47 + (-65)=-112
a)- 112
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-69 + 22 = -47
-72 - (-7) = -72 + 7 = -65
-47 + (-65) = - 47 - 65 = -112
(-69 + 22 )+ (-72-(-7)) = -47 + (-65)=-112
a)- 112