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OLEGan [10]
3 years ago
9

Can someone please help me :(

Mathematics
2 answers:
snow_tiger [21]3 years ago
6 0

Answer:

x=7

Step-by-step explanation:

2x + 1 = 15

-3x+6 = - 15

Since they are equal the equation is true

olchik [2.2K]3 years ago
4 0

Answer:

1

Step-by-step explanation:

2x + 1 = -3x + 6

add 3x

5x + 1 = 6

subtract 1

5x=5

Divide by 5

x=1

If this is correct, please mark brainliest!

You might be interested in
What are the x and y-intercepts of the line described by this equation? -6x+3y=18.9?
Naddika [18.5K]

The "x" intercept is found when you plug in "0" for "y"
  -6x + 3(0) = 18.9
        -6x = 18.9  (Divide both sides by -6)
           x = - 3.15
           (-3.15, 0)  is your x-intercept

Now plug in "0" for the x
-6(0) + 3y = 18.9
          3y = 18.9  (Divide both sides by 3)
                y = 6.3
               (0, 6.3) is your y - intercept






































5 0
3 years ago
Please help, would be greatful :)
tankabanditka [31]

Answer:

x ≈ 25.5°

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

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

<u>Step 1: Identify Variables</u>

Angle θ = <em>x</em>°

Opposite Leg = 10

Hypotenuse = 21

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute [tangent]:                    tanx° = 10/21
  2. Inverse trig:                                  x° = tan⁻¹(10/21)
  3. Evaluate:                                      x = 25.4633°
  4. Round:                                          x ≈ 25.5°
8 0
3 years ago
Where do martians leave thier spaceships
kari74 [83]
They leave it on the moon.
8 0
3 years ago
Read 2 more answers
Let y represent the total cost of publishing a book (in dollars). Let x represent the number of the copies of the book printed.
Oduvanchick [21]
Im sorry idk this answer

6 0
3 years ago
Find the value.<br> 9x+6 when x=-2/3
OLEGan [10]

Answer:

<h2>0</h2>

Step-by-step explanation:

Given,

-  \frac{2}{3}

Now, let's find the value of 9x + 6

9x + 6

plug the value of X

= 9 \times  (-  \frac{2}{3} ) + 6

Multiplying a positive and negative equals a negative

( + ) \times ( - ) = ( - )

=  - 9 \times  \frac{2}{3}  + 6

Reduce the number with Greatest Common Factor 3

=  - 3 \times 2 + 6

Multiply the numbers

=  - 6 + 6

The sum of two opposites equals 0

= 0

Hope this helps..

best regards!!

7 0
3 years ago
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