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
Ede4ka [16]
4 years ago
5

Please help :( [math]

Mathematics
1 answer:
sergij07 [2.7K]4 years ago
8 0

Hey!

------------------------------------------------

First Equation:

2x + 3 = -7

2x + 3 - 3 = -7 - 3 (Subtract 7 to both sides)

2x = -10

2x/2 = -10/2 (Divide 2 to both sides)

x = -5

------------------------------------------------

Second Equation:

4.5x - 7 = 20

4.5x + (-7) + 7 = 20 + 7 (Add 7 to both sides)

4.5x = 27

4.5x/4.5 = 27/4.5 (Divide 4.5 to both sides)

x = 6

------------------------------------------------

Third Equation:

-3x + 7 = 28

-3x + 7 - 7 = 28 - 7 (Subtract 7 to both sides)

-3x/-3 = 21/-3 (Divide -3 to both sides)

x = -7

------------------------------------------------

Answers:

2x + 3 = -7 → x = -5

4.5x - 7 = 20 → x = 6

-3x + 7 = 28 → x = -7

------------------------------------------------

Hope This Helped! Good Luck!

You might be interested in
Which figure shows a reflection of pre-image QRS over the line t?<br> (Picture has answers.)
Vika [28.1K]

A, because its reflecting off of the y axis

7 0
3 years ago
Read 2 more answers
Two vectors of lengths 4 and 6 have a dot product equal to 24. Which is true about the vectors?
GarryVolchara [31]

Answer:

1

Step-by-step explanation:

the dot product or scalar product is an algebraic operation that takes two equal-length sequences of numbers (usually coordinate vectors), and returns a single number. In Euclidean geometry , the dot product of the Cartesian coordinates of two vectors is widely used.

7 0
3 years ago
Read 2 more answers
Which type of sides are they and explain why they’re the correct answer!
statuscvo [17]

Answer:

SAS.

Step-by-step explanation:

They are congruent  by 2 sides and the included angle

8 0
3 years ago
Which of the following statements is true?
Hitman42 [59]
If my memory serves me well, the only wtatement which is true is the last one: <span>D) All linear equation and all quadratic equations are polynomial equations.</span>
8 0
3 years ago
Read 2 more answers
Geometry Help Please!!!<br><br> See Picture Below
MArishka [77]

Answer:

2. RS = ST, Reason: Midpoint of a line (definition)

4. RS = XY, Reason: Transitive Property of congruence (if a=b, and b=c, a=c)

Step-by-step explanation:

A Midpoint divides a line exactly in half, due to the definition of a Midpoint. So, RS = ST, since they measure the same distance from the Midpoint. RS=XY because of the Transitive Property of Congruence. If ST = XY, and RS = ST, then RS = XY.

8 0
4 years ago
Other questions:
  • A bag of marbles contains 6 bluemarbles, 2 yeloow marbles, 4 red marbles, and 1 green marble. What is the [robability of reachin
    5·1 answer
  • 5 square root 12 minus 3 square root 75
    15·1 answer
  • A bookstore rents books to students at $2 per book. The cost per hour of running the bookstore is $300. The numbers of books and
    8·1 answer
  • I need help plssssss
    9·1 answer
  • HELP PLS ASAP PLS HELP ANYONE WILL MARK BRAINLIEST!!!
    12·2 answers
  • What is the factored form of x^2-4x-13
    15·1 answer
  • Suppose the function f is updated from f ( x ) = x 4 to f ( x ) = − 3.5 x 4 . How does changing the coefficient from 1 to -3.5 i
    6·1 answer
  • Paula's hair was 14 centimeters long after her last haircut, and it grows 5 centimeters every
    13·1 answer
  • Please answer the question in the PNG below.
    15·1 answer
  • which statement couls be used to explain why the function h(x)=x³ has an inverse relation that is also a function ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!