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harkovskaia [24]
3 years ago
13

What is a possible first step in solving the equation? -4k + 9 = -k - 3

Mathematics
2 answers:
fomenos3 years ago
3 0

Answer:

subtract 9 both sides -4 = -k -12 then ad 12 both sides  , 8 = -k

Step-by-step explanation:

Bezzdna [24]3 years ago
3 0

Answer:

k = 4

Step-by-step explanation:

                              Possible first steps:

-4k + 9 = -k - 3

 +k          +k           add k to both sides

                                          OR

-4k + 9 = -k - 3

       - 9        - 9      subtract 9 from both sides

(LTLNTR a.k.a letters to left, numbers to right)

Hope this helps :)

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Find y when x = 3 of the equation for y=2x+12
ser-zykov [4K]

Answer:

y = 18

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> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

y = 2x + 12

x = 3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                                                                                                y = 2(3) + 12
  2. Multiply:                                                                                                           y = 6 + 12
  3. Add:                                                                                                                 y = 18
3 0
3 years ago
Read 2 more answers
How can we solve proportions? ( 2 words)
Vilka [71]

Answer:

Equality

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Step-by-step explanation:

3 0
3 years ago
One fourth of a box of cereal was shared equally among 3 people. How much cereal did each person get? Explain how you got your a
Mila [183]
Each person gets 0.083333..... of the box of cereal. i got my answer by dividing 0.25 or 1/4 by three and the answer was 0.083333 repeating.
6 0
3 years ago
Can anyone help me please? I really need it.
Artemon [7]
First you set f(x) and h(x) equal to each other. So 1/x+1=2x+3. Next, you multiply each side by 1 to cancel out the fraction. So now the answer is x+1=2x+3. Now subtract 1 from each side. X=2x+2. Subtract 2x from each side now. -2x=2. Divide by -2x and get the answer x= -1
6 0
3 years ago
A mountain bike has a diameter of 26 inches. To the nearest foot how far does the tire travel when it makes 32 revolutions?
Tcecarenko [31]
Hello!

You have to find the circumference

You use the equation

2 \pi r

r is radius which is half the diameter

This gives us 81.68

Multiply this by 32

81.68 * 32 = 2613.76

This is 217.8133333 feet

The answer is 217.8133 feet

Hope this helps!
8 0
3 years ago
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