1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
erastova [34]
2 years ago
10

Is x=7 a solution to the equation x-5-3(x+2)? Fill in the blanks to answer the question.

Mathematics
2 answers:
Anuta_ua [19.1K]2 years ago
8 0

Answer:

1) 2=27

2) x= -11/2

3) no

Step-by-step explanation:

meriva2 years ago
8 0

-------------------------------------------------------------------------------------------------------------

Answer:  \textsf{x = 7 is not a solution}

-------------------------------------------------------------------------------------------------------------

Given: \texts{x - 5 = 3(x + 2)}

Find:  \textsf{Determine if x = 7 is a solution}

Solution:  The first step would be to substitute 7 for every x that we have in the expression and then we simplify both sides.

<u>Substitute x with 7</u>

  • \texts{x - 5 = 3(x + 2)}
  • \texts{(7) - 5 = 3((7) + 2)}

<u>Simplify both sides</u>

  • \texts{2 = 3(7 + 2)}
  • \texts{2 = 3(9)}
  • \texts{2 = 27}

Since the numbers are not equal on both sides this evaluates to false meaning that x = 7 is not a solution of the expression that was provided.

You might be interested in
Which is equivalent to -9y+ 2x? (Choose all correct answers.) *
SOVA2 [1]
2x-9y and 11x + 3y - 12y - 9x
8 0
3 years ago
Read 2 more answers
How do I find the domain of f(x)=5x^2+4. When 0&lt;=x&lt;=2<br><br> #54
Blizzard [7]

Hi

if 0 ≤ x ≤ 2

0^2\leq x^2\leq 2^2

Multiplied by 5..... 5×0^2 \leq 5x^2\leq 5×2^2

add 4  .........5×0^2+4 \leq 5x^2+4\leq 5×2^2+4

so ........4\leq 5x^2+4\leq 24



4 0
3 years ago
Verify the identity. Show your work. (1 + tan^2u)(1 - sin^2u) = 1
yuradex [85]
\bf \textit{Pythagorean Identities}&#10;\\\\&#10;sin^2(\theta)+cos^2(\theta)=1\implies cos^2(\theta)=1-sin^2(\theta)&#10;\\\\ 1+tan^2(\theta)=sec^2(\theta)\\\\&#10;-------------------------------\\\\\&#10;[1+tan^2(u)][1-sin^2(u)]=1&#10;\\\\\\\&#10;[sec^2(u)][cos^2(u)]\implies \cfrac{1}{cos^2(u)}\cdot cos^2(u)\implies \cfrac{cos^2(u)}{cos^2(u)}\implies 1
7 0
3 years ago
1. Un conjunto de tablero de baloncesto que se vende por $ 79 tiene un descuento del 15%. ¿Cuál es el precio de venta?
GalinKa [24]
El Precio en total sera $67.15 el 15% sera $11.85
3 0
2 years ago
Use synthetic division and the given factor to completely factor the polynomial.
Advocard [28]
Hello there!


The factorization form is:

(x + 2)(x + 3)(x - 6)

I hope this helps!
4 0
2 years ago
Read 2 more answers
Other questions:
  • What's 7/9 - 3/9 simplified if possible.... Only in 4th grade please make it clear
    11·2 answers
  • What household items weigh 100 grams?
    7·1 answer
  • What is the value of the variables?
    12·1 answer
  • Find the least common denominator (LCD) of 5/12 and 1/9
    5·1 answer
  • The general form of the equation of a circle is x2 + y2 + 8x + 22y + 37 = 0.
    7·2 answers
  • Fill in the missing number?<br> ?(3+5) = 6 + 10
    9·1 answer
  • The radius of the base of a cylinder is increasing at a rate of 11 meter per hour and the height of the cylinder is decreasing a
    9·1 answer
  • If a customer leaves a tip of $7.35 and the bill was $49.00, what percent is the tip?
    10·1 answer
  • I need correct answer plzz​
    11·1 answer
  • Show your solution.<br>need asap​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!