Register

The question says; shown here is a mathematical step taken when solving an equation. Identify the mathematical reason or property used to simplify from the first step to the sec…

The question says; shown here is a mathematical step taken when solving an equation. Identify the mathematical reason or property used to simplify from the first step to the sec…
asked 173k views
0 votes
The question says; shown here is a mathematical step taken when solving an equation. Identify the mathematical reason or property used to simplify from the first step to the second step.

The question says; shown here is a mathematical step taken when solving an equation-example-1
asked
User Petezah
by
8.9k points

2 Answers

5 votes
In this case, we added 9 in both sides so (-9) in the first disappeared and 21 increased to 30 (And 30 - 21 = 9).
So it's the addition property of Equality.
answered
User Afeshia
by
8.9k points
1 vote
addition property of equality
answered
User Amirsalar
by
8.4k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.

Categories

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Link Copied!