What is the property, If a+10=20, then a=10

The Subtraction Property of Equality tells us that we can subtract

the same quantity, or equal quantities, from both sides of an equation.

Since we're given that a + 10 = 20, we can subtract

10 from both sides of the equation to get a = 10.

the answer is 8/21

hope this

-4, -2, 1, 4

step-by-step explanation:

domain = x values

range = y values