How do you know that a =6 is a solution to a+5=11?
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a + 5 = 11
You need to isolate the variable by subtracting from both sides
a + 5 - 5 = 11 - 5a = 6
The Addition/Subtraction Property of Equality states that if you add or subtract the same number to both sides of an equation the two sides still remain equal
:))