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
stich3 [128]
3 years ago
14

Solve each equation

Mathematics
2 answers:
4vir4ik [10]3 years ago
8 0

3b+7-1=-3

3b+6= -3

Move +6 to the other side. Sign changes from +6 to -6.

3b+6-6= -3-6

3b=-9

Divide by 3

3b/3=-9/3

b= -3

3x+1-6x=7

3x-6x+1= 7

-3x+1= 7

Move +1 to the other side. Sign changes from +1 to -1.

-3x+1-1= 7-1

-3x=6

Divide by -3

-3x/3= 6/-3

x= -2

312=-6(7x-3)

Mutiply the bracket by -6

312= (-6)(7x)(-6)(-3)

312= -42x+18

Move +18 to the other side.

312-18= -42x+18-18

312-18= -42x

294=- 42x

divide by -42

294/-42= -42/-42x

x= -7

-4(4n-8)=128

Mutiply the bracket by -4

(-4)(4n)(-4)(-8)= 128

-16n+32= 128

move +32 to the other side

-16n+32-32= 128-32

-16n= 96

divide by -16

-16/-16n= 96/-16

n= -6

Answers:

b= -3

x= -2

x= -7

n= -6

Slav-nsk [51]3 years ago
7 0

Answer:

b= -3

x= -2

x= -7

n = -6

Step-by-step explanation:

3b+7-1=-3

3b = -3 -7 +1

3b = -10+1

3b= -9

b = -9/3

b= -3

3x+1-6x=7

-3x = 7-1

-3x= 6

x= -6/3

x= -2

312=-6(7x-3)

312 = -6*7x +6*3

312= -42x +18

312-18= -42x

294 = -42x

x= -294/42

x= -7

-4(4n-8)=128

-4*4n +4*8 =128

-16n +32 = 128

-16n= 128-32

-16n = 96

n=-96/16

n = -6

You might be interested in
Jerimiah can type 300 words in 1/5 of an hour. How many words can he type in 1 hour
Arada [10]

Answer:

1500 words

Step-by-step explanation:

300 times 5 equals 1500.

5 0
3 years ago
A card is chosen at random from a deck of 52 cards. What is the probability that a king or queen is chosen?
Slav-nsk [51]

The answer is B) 2/13.

An easy way to figure this out is to find what the unsimplified probability would be:

Since there are 8 kings and queens in total, the number is:

8/52

But, since these are both even numbers, they can be simplified.

1/4 x 8 = 2

1/4 x 52 = 13

2/13

Since 13 is a prime number, the answer cannot be simplified anymore.

4 0
3 years ago
Proportions in Triangles (8)
pishuonlain [190]

Answer:

not really sure maybe 12

4 0
3 years ago
Read 2 more answers
Marlee drove 60 miles song 2 gallons of gas. whitch is the unit rate in fraction forms?
Orlov [11]

Answer:

the unit rate is 30 miles 1 gallon

5 0
3 years ago
What is 24 2/3 divided by 1 3/4
KengaRu [80]
296/21 is the answer hope this helps 
4 0
3 years ago
Read 2 more answers
Other questions:
  • The cost for a company to manufacture x bracelets can be represented by the function C(x). Complete the sentence below using the
    10·2 answers
  • The question is in the discription
    15·2 answers
  • PLEASE HELPP PRE CAL<br><br> What is the greatest common factor of 8m^2, 4m, and 10m^4
    9·2 answers
  • The figures below are similar find the missing perimeter P = 30 m 8m p = ? 4.8 m
    9·1 answer
  • Find m &lt; RQP <br><br> 70<br> 55<br> 80<br> 90
    7·1 answer
  • NEED HELP ASAP!!!<br> due by 3
    8·2 answers
  • 8.1 divided into 81 problem
    11·1 answer
  • PLZ NEED HELP ASAP!!!
    11·1 answer
  • PLEASEE HELPPP
    6·2 answers
  • What is the angle for the following numbers?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!