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
Ghella [55]
3 years ago
9

Solve -7x = 21 X = please help ASAP

Mathematics
2 answers:
vaieri [72.5K]3 years ago
8 0

Answer:

X=-3

Step-by-step explanation:

-7(-3)=21

the negatives when multipled become positive

21=21

so x=-3

Tomtit [17]3 years ago
6 0

Answer: x = -3

Step-by-step explanation:

i simply divided by -7, in order to get x by itself.

-7/-7x = 21/-7

that cancels out the -7 on the left side, and leaves us with -3 on the right side!

x = -3

You might be interested in
Andrew found a pan of brownies with 3/4 of the brownies left. He ate 1/3 of what was left. What portion of the whole brownies di
crimeas [40]

Answer:

1/4

Step-by-step explanation:

Andrew found a pan of brownies with 3/4 of the brownies left. He ate 1/3 of what was left. What portion of the whole brownies did he eat?

The size of the brownies Andre ate =

1/3 of 3/4

= 1/3 × 3/4

= 1/4

Therefore, the portion of the whole brownies that Andre ate was 1/4

3 0
3 years ago
-1(3x - 4y + 5) =<br> A) 2x - 5y + 4<br> B) -3x + 4y - 5<br> C) -3x + 4y + 5<br> D) -3x - 4y - 5
White raven [17]

Answer:

-3x+4y-5 (B)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
If the measures of two angles of a triangle are 102° and 27°, what is the measure of the third angle?
yawa3891 [41]

Answer:

75°

Step-by-step explanation:

this isnt really step by step but its some thing

102

-27=

75°

6 0
3 years ago
What is the equation for the acid ionization constant of HClO2?
jarptica [38.1K]
<span>[H+] x [(CIO2)-]/[HCIO2]</span>
6 0
3 years ago
Given m
Ronch [10]

Answer:

x + 80°= 180° ( angles made in straight line)

x = 180°-80°

x = 100°

hope it is helpful to you

6 0
3 years ago
Read 2 more answers
Other questions:
  • Need help with math hw please
    8·1 answer
  • What are the solutions of the equation x4 + 95x2 – 500 = 0? Use factoring to solve.
    14·2 answers
  • Write 7,258,630 in word form
    12·1 answer
  • Roberto wants to display his 18 sports cards in an album. Some pages hold 2 cards and others hold 3 cards. How many different wa
    5·1 answer
  • Some help, please?<br><br><br><br> Which of the following is a monomial?
    10·1 answer
  • Diana supplies costumes to a number of theater companies. She recently provided 17 different hats, including 5 crowns. What is t
    5·1 answer
  • 7x + 2y = 17<br>2x - 2y = 1<br>=​
    6·1 answer
  • 3.2.PS-39 A number is between 41 and 46. It has prime factors of 2 and 11. What is the number? (​
    14·1 answer
  • Y=x^2+3x+4 function, what is the equation of point x=1
    6·1 answer
  • X<br> 8.<br> 13<br> Solve for enter the number only)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!