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
yan [13]
2 years ago
7

Calcula y comprueba las ecuaciones: plisss lo necesito alguien me puede ayudar a) 2X = 6 b) 10 + Z = 20 c) P + 9 = 11 d) 3X + 8

= + 29 e) 2U + 8 = 10
Mathematics
1 answer:
vesna_86 [32]2 years ago
8 0

Answer:

a) x=3

b) z=10

c) P= 2

d) X=7

e) U=1

Step-by-step explanation:

Resolver una ecuación consiste en hallar los valores de la variable que hacen cierta la igualdad.

a) 2x= 6

El coeficiente es el número junto a la variable. En este caso, el coeficiente es 2. Para eliminar este número en la expresión 2x, debido a que la variable x esta multiplicada por 2, deberás dividir ambos lados de la ecuación entre 2, debido a que la operación opuesta de la multiplicación es la división.

(2x)÷2=6÷2

x= 3

Comprobar la solución de una ecuación se hace al remplazar la variable en una ecuación con el valor de la solución. La solución debería satisfacer la ecuación cuando se ingresa en esta.

En este caso:

2*3= 6

6=6

b) 10 + z= 20

En este caso se debe sumar o restar la constante que se encuentra acompañando a la variable en ambos lados de la ecuación de manera de aislar el término de la variable. En este caso:

10 - 10 + z= 20 -10

z= 10

Comprobación:

10 + z=20

10 + 10=20

20=20

c) P + 9= 11

P +9 - 9= 11 -9

P=2

Comprobación:

2 + 9= 11

11=11

d) 3X + 8 = 29

En este caso, se suma o resta la constante en ambos lados de la ecuación y luego se elimina el coeficiente de la variable mediante la división o multiplicación. Esto es:

3X + 8 - 8= 29 - 8

3X= 21

3X ÷3= 21÷3

X=7

Comprobación:

3*7 + 8=29

21+8=29

29=29

e) 2U + 8= 10

2U + 8 - 8= 10 -8

2U= 2

2U ÷2= 2÷2

U=1

Comprobación:

2*1 + 8= 10

2 + 8= 10

10=10

You might be interested in
Help please I really need help<br> :)
Firdavs [7]

Answer:

Solution given:

For 1st

x²=71

For x=±\sqrt{71}

and

For 2nd

x³=71

For x=±\sqrt[3]{71}

So answer is:

In first row

<u>Solution to x²=71</u>

In second row

<u>Solution to </u><u>x³</u><u>=71</u>

In third row

<u>neither</u>

In forth row

<u>Solution to x³=71</u>

6 0
2 years ago
1,985 + 12,000 + what ? = 14,471 .
Scrat [10]

Answer:

486

Step-by-step explanation:

1,985 + 12,000 + x = 14,471

x = 14471 - 12000 - 1985

x = 486

6 0
3 years ago
Read 2 more answers
25 POINTS!! PLEASE HELP!
Anvisha [2.4K]

Answer:

The length of TQ is 14.

Step-by-step explanation:

The length of SV and VS are the same.

4x - 1 = 15

4x = 16

x = 4

Similarly, the length of TS and TQ are the same.

3x + 2 = 3(4) + 12 = 14

6 0
2 years ago
What is the value of x in 145.95-2x=-4.05?
kotykmax [81]
145.95 - 2x = -4.05
subtract -145.95 from both side of the equation
-2x = -4.05 - 145.95
-2x = -150
Divide both sides by -2
-2x/2 = -150/2

x = 75
Final answer

Hope this helps!!!!
3 0
3 years ago
X^8+8x^7+15x^6−9x^5−72x^4−135x^3+8x^2+64x+120
LenaWriter [7]

Answer:

(x+3)(x+5)<em>(x-2)(x-1)</em><u>(x^2+2x+4)(x^2+x+1)</u> where the given one is bolded the 2 binomials is italicized  and the 2 trinomials is underlined

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Is 2/12 a terminating term? ?
    15·1 answer
  • Zoey took 2.5 hours to bike the 60 km from her house to the beach. It took her 3.5 hours to bike the same distance back to her h
    13·1 answer
  • What are the values for the coefficients and constant term of 0 = 2 + 3x2 – 5x?
    12·2 answers
  • What’s the inverse equation? And how you solved it step by step please!
    8·1 answer
  • Suppose that the minimum score on certification test is 200 and the maximum score is 1000. Write an absolute value equation that
    12·1 answer
  • Jose and Tamara are decorating for a party. They have two different color streamers, red and blue. The ratio of length of red to
    12·2 answers
  • 2/3x+1/3y=2 in graph
    8·1 answer
  • 1. f(x) = x + 5, f(x) = 9
    9·1 answer
  • A store offers a 30% discount on a coat that originally sold for $120. The coat still does not sell, so the store offers another
    13·1 answer
  • HELP POINTS FOR Each answEr quantity 4 times x plus 3 end quantity divided by 5 equals quantity 8 times x minus 1 end quantity d
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!