Answer:
Subtraction property
Step-by-step explanation:
Given JK+LM=NP+LM
To show that JK = NP, we will subtract LM from both sides
JK+LM-LM=NP+LM -LM
JK = NP
Since we subtracted LM from both sides without affecting the nature of the equality sign, then the property used is the subtraction property
