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
MrRissso [65]
3 years ago
15

Simplify 99=2(-7b-3)+7​

Mathematics
2 answers:
alexgriva [62]3 years ago
6 0

b = -7  is the answer

Arisa [49]3 years ago
5 0

Answer:

b=-7

Step-by-step explanation:

Simplifying

99 = 2(-7b + -3) + 7

Reorder the terms:

99 = 2(-3 + -7b) + 7

99 = (-3 * 2 + -7b * 2) + 7

99 = (-6 + -14b) + 7

Reorder the terms:

99 = -6 + 7 + -14b

Combine like terms: -6 + 7 = 1

99 = 1 + -14b

Solving

99 = 1 + -14b

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '14b' to each side of the equation.

99 + 14b = 1 + -14b + 14b

Combine like terms: -14b + 14b = 0

99 + 14b = 1 + 0

99 + 14b = 1

Add '-99' to each side of the equation.

99 + -99 + 14b = 1 + -99

Combine like terms: 99 + -99 = 0

0 + 14b = 1 + -99

14b = 1 + -99

Combine like terms: 1 + -99 = -98

14b = -98

Divide each side by '14'.

b = -7

Simplifying

b = -7

You might be interested in
2X+15= -3x how do you work this equation​
Sphinxa [80]

Answer: x=-3

<u>Add 3x to both sides</u>

<u></u>2x+15+3x=-3x+3x\\5x+15=0<u></u>

<u></u>

<u>Subtract 15 from both sides</u>

<u></u>5x+15-15=0-15\\5x=-15<u></u>

<u></u>

<u>Divide both sides by 5</u>

<u></u>5x/5=-15/5\\x=-3<u></u>

8 0
3 years ago
Read 2 more answers
Properties of 2-Dimensional Figures 1-7
Basile [38]

Answer:

1. PNT

2.RNM

3.QNM

4.UYZ

5. None

6.VYZ

7.none

Step-by-step explanation:

suplametery means when you add to angles together it will equal 180

while complementery is when to angels are added together to make 90 degrees

4 0
2 years ago
Factor wheels show all the
Zielflug [23.3K]

answer: 2 × 2 × 2 × 2 × 2 = 32

Step-by-step explanation:

32 \\  = 16 \times 2  \\ = 4 \times 4 \times 2  \\ = 2 \times 2 \times 2 \times 2 \times 2

3 0
2 years ago
What is 80% of 960? Round to the nearest hundredth (if necessary).
Tatiana [17]

Answer:

Step-by-step explanation:

you could do (960/100)*80=768

8 0
3 years ago
Read 2 more answers
A kite is flying 70 feet above the ground and is attached to a string tied to a stake on the ground. The angle of elevation form
frozen [14]
If you draw a diagram of this, your given values of the resulting triangle give you the sides opposite and adjacent of the angle. The formula that uses these sides is tangent.

The tangent of an angle is equal to the ratio of the opposite side over the other non-hypotenuse side (adjacent).

Therefore;

tan(40)=70/x
0.83909963117=70/x
0.83909963117x=70
x=70/0.83909963117
x=83.4227514823

Where x is the length of the string in feet.
3 0
3 years ago
Other questions:
  • Brian has 42 tickets. He sells 5/6 of the tickets. How many tickets did he sell?
    14·2 answers
  • What is the difference between advanced calculus and real analysis?
    6·1 answer
  • The ratio of the length of a rectangle to its width is 8 to 5. If the longer side of the rectangle is 20ft, what is the length o
    9·2 answers
  • What is 3 less than g is 19
    10·1 answer
  • Toys-A-Go makes toys at Plant A and Plant B. Plant A needs to make a minimum of 1000 toy dump trucks and fire engines. Plant B n
    15·2 answers
  • Real easy, just can't remember. Sorry for potato quality.
    7·1 answer
  • An art class has 33 students. The ratio of boys to girls is 5:6. How many girls are in this
    7·2 answers
  • The sum of 23 and a number is 39
    6·2 answers
  • There are 40 people in a restaurant,
    9·2 answers
  • Hi im qutting. thanks for all the memories
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!