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castortr0y [4]
3 years ago
13

What is 2x+3=9?????????????

Mathematics
2 answers:
ale4655 [162]3 years ago
8 0

Answer:

3

Step-by-step explanation:

Mkey [24]3 years ago
5 0

Answer:x=3

Step-by-step explanation:

Step 1: Subtract 3 from both sides.

2x+3-3=9-3

2x=6

Step 2: Divide both sides by 2.

2x/2=6/2

X=3

Hope that helps :D

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Convert 40.64 centimeters to inches. 1inch =2.54 centimeters
mario62 [17]
40.64/2.54= 16 inches
4 0
3 years ago
Can you help me solve this it’s pretty easy but for you guys
Andrew [12]

Answer:

x - 81 = 321

adding 81 on both sides

x-81+81= 321+81

x= 402

8 0
3 years ago
Read 2 more answers
Solve the quadratic equation: 2x2 + 11x − 6 = 0
Ostrovityanka [42]

Answer:

see explanation

Step-by-step explanation:

To factorise the quadratic consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x term.

product = 2 × - 6 = - 12 and sum = + 11

The factors are + 12 and - 1

Use these factors to split the middle term

2x² + 12x - x - 6 = 0 ( factor the first/second and third/fourth terms )

2x(x + 6) - 1(x + 6) = 0 (factor out (x + 6) )

(x + 6)(2x - 1) = 0

equate each factor to zero and solve for x

x + 6 = 0 ⇒ x = - 6

2x - 1 = 0 ⇒ x = \frac{1}{2}


3 0
3 years ago
In the diagram below, DE is parallel to XY. What is the value of x?
iren2701 [21]

Answer:

A. 85

Step-by-step explanation:

Since DE and XY are parallel, this means that the given angle and angle x are alternate Angles. According to the law of alternate Angles, this means that they are equal. It also makes sense as the angle x is the same angle as the angle directly opposite angle 85. This is because they are on the same line across parallel lines. This also means they are equal because vertically opposite angles are always equal.

Therefore x =85

Hope this helped!

7 0
3 years ago
Simplify when x=4 4x/2x^2
yuradex [85]

Answer:

1/2

Step-by-step explanation:

Did you mean "evaluate?"

Write out the expression

   4x/2x^2

and simplify it:  

    4x            2

---------- = ---------- after reduction

  2x^2           x

Now substitute 4 for x.  We obtain:

2/4 = 1/2

4 0
3 years ago
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