9514 1404 393
Answer:
subtraction property of equality
Step-by-step explanation:
The second equation is arrived at by subtracting 5z from both sides of the first equation. The property that lets you do that without changing the values of the variable is ...
the subtraction property of equality
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x +5z = 10
x +5z -5z = 10 -5z . . . . subtract 5z from both sides
x = 10 -5z . . . . . simplify
