1 answer:
Answer:
z = -3
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
<u>Algebra I</u>
Equality Properties
Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality
Distributive Property
Terms/Coefficients
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify.</em>
42 = -7(z - 3)
<u>Step 2: Solve for </u><em><u>z</u></em>
[Distributive Property] Distribute -7: 42 = -7z + 21 [Subtraction Property of Equality] Subtract 21 on both sides: 21 = -7z [Division Property of Equality] Divide -7 on both sides: -3 = z Rewrite: z = -3
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Answer:
It's divisible by 9
Step-by-step explanation:
7/8. You can divide each by 11 and get 7/8 which is the simplest form.