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
WARRIOR [948]
1 year ago
11

Solve for x: 5x+7=3x−9.

Mathematics
1 answer:
ludmilkaskok [199]1 year ago
6 0

To solve for x in the given equation;

5x+7=3x-9

We start by collecting like terms, as follows;

5x-3x=-9-7

When a number crosses the sign of equality, the sign in front of it switches. Positive numbers becomes negative, and vice versa.

We would now have;

\begin{gathered} 5x-3x=-9-7 \\ 2x=-16 \\ \text{Divide both sides by 2;} \\ \frac{2x}{2}=\frac{-16}{2} \\ x=-8 \end{gathered}

ANSWER:

The answer is x = -8

You might be interested in
How many gallons of paint will you need in order to paint a wall that is 42 feet wide and 27 feet high if one gallon will cover
GREYUIT [131]

Answer:

42 x27  //// 1134 is the area

Step-by-step explanation:

1134/ 200= 5.67

You have to round up because you can’t get .67 of a paint bucket So you would have to round it out. <em>About 6 buckets.</em>

6 0
2 years ago
What is the value of 3-(-2)​
Alinara [238K]

Answer:

5

that is the answer

7 0
3 years ago
Read 2 more answers
Sara jumps off a diving board that is 6 feet above the surface of the water her height above the surface of the water h in feet
Flauer [41]
Well when she hits the water h=0 so

2t^2-t-6=0  factor

2t^2-4t+3t-6=0

2t(t-2)+3(t-2)=0

(2t+3)(t-2)=0, since t>0

t=2 seconds...

However it should be noted that h(t)=-2t^2+t+6 implies that

v(t)=dh/dt=-4t+1 and

a(t)=dv/dt=-4

Since this is a free fall equation, this would suggest that the acceleration due to gravity is -4, whether that is supposed to be -4ft/s^2 or -4m/s^2, it certainly is not on this planet! :D  If it is -4ft/s^2 it could be on the Moon or if it is -4m/s^2 it could be on Mars.
7 0
3 years ago
A girl takes 6 hours to ride 38.4 kilometers what is her speed
miss Akunina [59]
I'm not sure but i think its 6.4km per hour
8 0
3 years ago
Read 2 more answers
B
Wewaii [24]

Answer: D

Step-by-step explanation: I took the test

3 0
3 years ago
Read 2 more answers
Other questions:
  • Is 1.68 greater than 1.680
    8·1 answer
  • Help!!!
    10·1 answer
  • Write 2 different equations with a sum of 9/5.
    5·1 answer
  • divide. mr. george owns 425 acres of land. if he divides the land into half-acre plots, how many plots will he have? 212 �� 850
    6·2 answers
  • Arrange from least to greatest
    5·1 answer
  • Expand (4x-2y)^3 for math final
    15·1 answer
  • The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, So
    8·1 answer
  • A square with an area of 4 in² is dilated by a factor of 7. What is the area of the dilated square?
    7·1 answer
  • How can You use mental math for 878 + 534=
    7·2 answers
  • Plz help this is super duper hard
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!