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2014-10-29T13:17:32+02:00
A)
x+y=171+112=283
b)
x+y=-213-67=-280
c)
x+y=-47-133=-180
d)
x+y=-59-241=-300
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2014-10-29T13:19:59+02:00
A) x + y = 171 + 112 = 283
b) x + y = - 213 + (- 67) = -213 - 67 = - 280
c) x + y = - 47 + (- 133) = -47 - 133 = - 180
d) x + y = - 59 + (- 241) = -59 - 241 = - 300
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