Ответ:
а) 21+3+51-1+2=76
b)ba+5a– – 2a = ba+5a+2a= ba+7a
c) 6x14x–3+5x–2x = 87x–3
d) 2+k+k = 2+2k
e) k+k= 2k
g)—
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Ответ:
а) 21+3+51-1+2=76
b)ba+5a– – 2a = ba+5a+2a= ba+7a
c) 6x14x–3+5x–2x = 87x–3
d) 2+k+k = 2+2k
e) k+k= 2k
g)—