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3 years ago

Evaluate the expression when x=3 and y=-6 7y-x

Mathematics

2 answers:

Alenkasestr [34]3 years ago

8 0

7(-6) - 3
-42 -3
-45
Your answer is -45

stira [4]3 years ago

8 0

7y-x
=7(-6)-3
=-42-3
=-45

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Step-by-step explanation:

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andreyandreev [35.5K]

Answer:

$\displaystyle \frac{x + 7}{3}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Terms/Coefficients
Factoring

Step-by-step explanation:

Step 1: Define

$\displaystyle \frac{x^2 + 12x + 35}{3x + 15}$

Step 2: Simplify

[Fraction] Factor numerator: $\displaystyle \frac{(x + 5)(x + 7)}{3x + 15}$
[Fraction] Factor denominator: $\displaystyle \frac{(x + 5)(x + 7)}{3(x + 5)}$
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