Question

Given that 2x – 9y = 11

Answer 1

Answer:

y = 1/3

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  

Equality Properties

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

Step-by-step explanation:

Step 1: Define

Identify

2x - 9y = 11

x = 7

Step 2: Evaluate

1. Substitute in x:                                                                                                  2(7) - 9y = 11
2. Multiply:                                                                                                             14 - 9y = 11
3. [Subtraction Property of Equality] Subtract 14 on both sides:                       -9y = -3
4. [Division Property of Equality] Divide -9 on both sides:                                 y = 1/3