1 answer:
Answer:
y = 1/3
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
Equality Properties
Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality<u>
</u> Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
2x - 9y = 11
<em>x</em> = 7
<u>Step 2: Evaluate</u>
Substitute in <em>x</em>: 2(7) - 9y = 11 Multiply: 14 - 9y = 11 [Subtraction Property of Equality] Subtract 14 on both sides: -9y = -3 [Division Property of Equality] Divide -9 on both sides: y = 1/3
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