Identify the property or rule that justifies each step in the calculation.
4/7k+(j+1/7k)
4/7k+(1/7k+j)
(4/7k+1/7k)+j
k(4/7+1/7)+j
5/7k+j
4/7k+(j+1/7k)
4/7k+(1/7k+j)
(4/7k+1/7k)+j
k(4/7+1/7)+j
5/7k+j
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1 answer
0 answers
1 answer