Posted by **Cassie** on Wednesday, January 18, 2012 at 5:44pm.

Solving Equations with Grouping Symbols:

3(g-3)=6

Please explain how to do this

Rules:

Use Distributive Property

Combine like terms

Solve by using inverse operations

- Math -
**Ms. Sue**, Wednesday, January 18, 2012 at 5:47pm
3(g-3)=6

3g - 9 = 6

3g - 9 + 9 = 6 + 9

3g = 15

g = 15/3

g = 5

- Math -
**Cassie**, Wednesday, January 18, 2012 at 5:50pm
What about :

5(2c+7)=80

- Math -
**Cassie**, Wednesday, January 18, 2012 at 5:52pm
I don't understand it still

- Math -
**Ms. Sue**, Wednesday, January 18, 2012 at 6:11pm
5(2c+7)=80

Parentheses means multiply.

10c + 35 = 80

Get the knowns on one side -- so subtract 35 from each side.

10c + 35 - 35 = 80 - 35

10c = 45

Divide both sides by 10

c = 45/10

c = 4.5

## Answer this Question

## Related Questions

- Math - Using Dis. Property to solve Equations Use the Dis Property Combine like ...
- Pre- Algebra - 4(x-2)=3(1.5+x) Use Dis.Property Combine like terms Solve using ...
- Math - 5(2c+7)=80 Dis.Property Use Dis. Property Combine like terms Solve using ...
- math - 3(4u-6)=2(4u-3)-(u-8) what is u 12u-18=8u-6-u+8 Can you take it from here...
- Math - Explain how the order of operations determines how you simplify a numeric...
- 5th grade math - use inverse operations and a property of equaility to solve the...
- Geometry - Given: 7x + 2 = 2 + 5x – 6 Prove: x = –3 Given the equation 7x + 2...
- algebra 1 - ELEMENTARY ALGEBRA #3 Page 23 Chapter 3 Lesson 3.02 Solving Multi-...
- Math - okay so i feel like a dummie for not knowing this but i need the answer ...
- Math 8R - HELP! - Simplifying Algebraic Expression Using the Distributive ...

More Related Questions