Ответ:
z+19z+6z = 20z+6z = 26z.
14×k×3 = 42k.
9k+k-5 = 10k-5.
17a+24-15a+8 = 2a+32.
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Ответ:
z+19z+6z = 20z+6z = 26z.
14×k×3 = 42k.
9k+k-5 = 10k-5.
17a+24-15a+8 = 2a+32.