if j = k, then j + 9 = k + 9 represents which algebraic property?
a) additive identity
b) additive inverse
c) addition property of equality
d) associative property of addition

The academic affairs council is the highest expert body processing academic affairs, as stipulated by the university statutes. specialist aaro häkkinen (educational policy) took part in the council’s meeting. the agenda of the meeting included bachelors’ feedback, the timing of pedagogical studies, the grant system for tuition fees, the standardisation of administrative practices for internships and the situation of foreign-language and multilingual master’s programmes.

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Line ab is y = -7/5x + 56/5i don't understand  where point d comes into this.