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
Ad libitum [116K]
3 years ago
7

3(x-7)+8=-20can someone explain how to do this step by step​

Mathematics
2 answers:
OverLord2011 [107]3 years ago
4 0

Answer:

3x₋21₊8≈20

3x₋13≈20

3x≈7

x≈7÷3

Mrrafil [7]3 years ago
3 0

3(x-7)+8=-20

Multiply the bracket by 3

(3)(x)(3(-7)+8= -20

3x-21+8= -20

3x-13= -20

Move -13 to the other side. Sign changes from -13 to +13.

3x-13+13= -20+13

3x= -7

Divide by 3

3x/3= -7/3

x= -7/3 or in mixed number : -2 1/3

Answer : x= -7/3 or in mixed number : -2 1/3

You might be interested in
Which sample fairly represents the population? Select two options.
iVinArrow [24]

Answer:

...

Step-by-step explanation:

where is the question

4 0
3 years ago
Read 2 more answers
Combine like terms 3x + 5y - x
vladimir2022 [97]
The answer is D because I did the math
7 0
3 years ago
Solve the equation d − 5 9 = 3 9
Allushta [10]

Answer:

D = 98

Step-by-step explanation:

if you add up 59 + 39 you get 98 meaning D is 98

4 0
3 years ago
CAN SOMEONE HELP MEPLZ
Sholpan [36]

Answer:

Step-by-step explanation:

<h2>A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find the time that the rocket will hit the ground, to the nearest 100th of second. </h2><h2>y=-16x^2+129x+119 </h2><h2>y=−16x  </h2><h2>2 </h2>

+129x+119

8 0
3 years ago
Deirdre plotted a point D in Quadrant IV. After she reflected the point across an axis, the reflection was in Quadrant III. Give
Lostsunrise [7]
It depend on what d was. anything in Q3 can work for the reflection and both x and y are negative, you can say that for sure. for the actual point D, anything in Q4. in Q4 x is positive and y is negative. if d is (3,-3) then it's reflection is (-3,-3)
8 0
3 years ago
Other questions:
  • (-a)^3 in expanded form?
    15·1 answer
  • Write an expression for the area of this sweetuare
    5·1 answer
  • What is the median of the following numbers?<br> 8,1,2,6,1,4<br> Stuck? Watch a video or use a hint.
    12·2 answers
  • The lowest tempature reached on a cold night was -6 degrees Fahrenheit the next day had a high of 15 degrees Fahrenheit what was
    12·1 answer
  • -Select all that apply.
    14·1 answer
  • If the cost of those white tiles are $ 3.50 what is the unit cost per white
    7·1 answer
  • The sum<br> of the square of two consecutive<br> odd intergers is<br> 290. Find the integers.
    10·1 answer
  • A given triangle contains interior angles XY,
    8·1 answer
  • Use distributive property to find 6×296​
    14·2 answers
  • Graph the system of linear inequalities.<br> y &gt; 3x + 2<br> y ≤ 3x − 4
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!