Asked by David
Substitution Property of Equality: If a=20, then 5a= _____.
The substitution rule states that If a=b then a can be substituted for b in any equation or expression.
So I think that 5a=5b but the number answer is 100. Am I correct?
The substitution rule states that If a=b then a can be substituted for b in any equation or expression.
So I think that 5a=5b but the number answer is 100. Am I correct?
Answers
Answered by
Steve
correct.
But your reasoning is skewed. Forget about some "b". Substitute 20 for a.
5a = 5(20) = 100
But your reasoning is skewed. Forget about some "b". Substitute 20 for a.
5a = 5(20) = 100
Answered by
David
But is 5a equal to 5b?
Answered by
Steve
only if a=b
Answered by
David
Yes a is equal to b. Thanks for your help!
Answered by
Barbara
If 2n=6, what property of equality is justified
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