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nlexa [21]
3 years ago
13

4x – 7 = 5x + 2 What is X?

Mathematics
2 answers:
olga nikolaevna [1]3 years ago
7 0

Answer: X = -9

Step-by-step explanation:

get x by itself by getting it to one side alone

4x - 7 = 5x + 2

subtract 2 from both sides

4x -9 = 5x

subtract 4x from both sides

-9 = x

plug it in to check

4(-9) - 7 = 5(-9) + 2

and they each end up being -43

Maksim231197 [3]3 years ago
5 0

Answer:

x = -9

Step-by-step explanation:

We are solving for x

Subtract 2 from both sides and you get:

4x - 9 = 5x

Then subtract 4x from both sides:

-9 = x

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What is the rate of change of the graph shown below?<br><br> PLS HELP!!!! ^^^
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Answer:

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General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (3, 0)

Point (0, 1)

<u>Step 2: Find slope </u><em><u>m</u></em>

Plug in points to find the rate of change of the graph.

  1. Substitute [SF]:                    m=\frac{1-0}{0-3}
  2. Subtract:                              m=\frac{1}{-3}
  3. Rewrite:                               m=\frac{-1}{3}
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3 years ago
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