Solve y = −23(x + 9) + 4 for x when y = 0.
2 answers:
Answer:
-203
Step-by-step explanation:
remove the 0 ( when adding or substracting 0, the quantity does not change
y=-23 (9+4)
Multiply the numbers -23x9
y= =207+4
Calculate the sum
y= -207+4
Which = -203
Answer:
x = -203/23
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>
y = -23(x + 9) + 4
y = 0
<u>Step 2: Solve for </u><em><u>x</u></em>
Substitute in <em>y</em>: 0 = -23(x + 9) + 4 [Subtraction Property of Equality] Subtract 4 on both sides: -4 = -23(x + 9) [Division Property of Equality] Divide -23 on both sides: 4/23 = x + 9 [Subtraction Property of Equality] Subtract 9 on both sides: -203/23 = x Rewrite: x = -203/23
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