156k views
4 votes
Why is this true 7a+4-2a=7a+ -2a+4​

User Dheeresha
by
8.3k points

2 Answers

7 votes

Answer:

7a + 4 - 2a = 7a - 2a + 4

5a + 4 = 5a + 4

Explanation:

7a + 4 - 2a = 7a - 2a + 4

​7a + 4 - 2a

Rearrange the terms.

7a - 2a + 4

Combine like terms.

5a + 4

The left side simplifies to 5a + 4.

7a - 2a + 4

5a + 4

The right side also simplifies to 5a + 4.

User Sven Dhaens
by
8.1k points
5 votes

Answer:

Explanation:

Notice that both sides involve 7a - 2a, and both involve 4. By the associative property the order in which the addends appear is immaterial; the left side therefore equals the right side.

User Miguel Barra
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories