Question

Solve the equation or inequality 3(14+x) =57 for the unknown number. Show your work.

Answer 1

x=5

Explanation:

First multiply 3(14+x) = 42 + 3x

Now you have the equation 42 + 3x =57

Then subtract 42 from both sides

The equation would be 3x = 15

Divide 3 from each side to get the x value

15/3=5

So therefore your answer would be x = 5

Hope this helps!

Answer 2

x = 5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Distributive Property

Equality Properties

• Multiplication Property of Equality
• Division Property of Equality
• Addition Property of Equality
• Subtraction Property of Equality

Explanation:

Step 1: Define

3(14 + x) = 57

Step 2: Solve for x

1. [Distributive Property] Distribute 3: 42 + 3x = 57
2. [Subtraction Property of Equality] Subtract 42 on both sides: 3x = 15
3. [Division Property of Equality] Divide 3 on both sides: x = 5