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Vikentia [17]
3 years ago
14

3(3x+7)=3x+51 find x for brainliest

Mathematics
1 answer:
KIM [24]3 years ago
8 0

Answer: x = 5

Step-by-step explanation: First distribute the 3 to get 9x +21 = 3x +51, then subtract 3x and 21 from both sides to get 6x = 30, and finally divide by 6 on both sides to get x = 5.

Hope this helps! :)

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Fie ∆ABC dreptunghic,m(unghiului B)=90°.Punctul M este mijlocul ipotenuzei.Stiind ca m(unghiului A)=30°si MC =3,2cm.Aflati perim
babymother [125]

Answer:

hi

Step-by-step explanation:

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3 0
4 years ago
<img src="https://tex.z-dn.net/?f=5x%5E%7B2%7D%20%2B11x%2B2%3D0" id="TexFormula1" title="5x^{2} +11x+2=0" alt="5x^{2} +11x+2=0"
eimsori [14]

The solutions to the quadratic equation in the exact form are x = -1/2 or x = -5

<h3>What are quadratic equations?</h3>

Quadratic equations are second-order polynomial equations and they have the form y = ax^2 + bx + c or y = a(x - h)^2 + k

<h3>How to determine the solution to the quadratic equation?</h3>

A quadratic equations can be split to several equations and it can be solved as a whole

In this case, the quadratic equation is given as

5x^2 + 11x + 2 = 0

Using the form of the quadratic equation y = ax^2 + bx + c, we have

a = 5, b = 11 and c = 2

The quadratic equation can be solved using the following formula

x = (-b ± √(b^2 - 4ac))/2a

Substitute the known values of a, b and c in the above equation

x = (-11 ± √(11^2 - 4 * 5 * 2))/2*2

Evaluate the exponent

x = (-11 ± √(121 - 4 * 5 * 2))/2*2

Evaluate the products

x = (-11 ± √(121 - 40))/4

Evaluate the sum

x = (-11 ± √(81))/4

Take the square root of 81

x = (-11 ± 9)/4

Expand

x = 1/4 * (-11 + 9) or x = 1/4 * (-11 - 9)

Evaluate the difference

x = 1/4 * -2 or x = 1/4 * -20

Evaluate the product

x = -1/2 or x = -5

Hence, the solutions to the quadratic equation in the exact form are x = -1/2 or x = -5

Read more about quadratic equations at

brainly.com/question/1214333

#SPJ1

4 0
2 years ago
a club decides to sell t-shirts for $15 as a fundraiser. It costs $20 plus $9 per t-shirt to make the t-shirts. write and solve
STALIN [3.7K]
The answer is 15x-(9x+20)=>150;x =>28.33
3 0
3 years ago
Read 2 more answers
Whats bigger 1/4 1/10
Rina8888 [55]

Answer:

1/4

Step-by-step explanation:

its bigger

5 0
3 years ago
Read 2 more answers
Please help out its due today :]​
slamgirl [31]

Answer:help this kid

Step-by-step explanation:

6 0
3 years ago
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