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
Vikentia [17]
4 years ago
11

Solve 7+3x-12x=3x+1 What does X equal?? plz help!

Mathematics
1 answer:
ratelena [41]4 years ago
5 0

Answer:

x = 0.5 or \frac{1}{2}

Step-by-step explanation:

7+3x-12x=3x+1

  -3x      =-3x     cross out 3x

7-12x=1  subtract 7 on both sides

-7          =-7

-12x=-6 divide -12 into both sides

\frac{-12x}{-12} = \frac{-6}{-12}  cross out -12 and divide -6/-12 = 0.5

To check

7+3(0.5)=8.5 - 12(0.5)=2.5

3(0.5)=1.5+1= 2.5

You might be interested in
The circle is inscribed in Triangle AEC. Which are congruent line segments
Harlamova29_29 [7]

Answer:

E-F and E-D

C-B and C-D

Step-by-step explanation:

The circle and triangle are as shown.  The options are:

  • A-B and C-B
  • E-F and E-D
  • E-D and C-D
  • A-F and E-F
  • C-B and C-D

By drawing radius lines from the center of the circle to the tangent points B, D, and F, we can divide the triangle into 3 kites.  Therefore, only segments that are legs of the same kite are congruent.  So the answer must be E-F and E-D, and C-B and C-D.

6 0
3 years ago
Read 2 more answers
If a line with a slope of -2 crosses the y-axis at (0,3) what is the equation of the line
Ghella [55]
Hello!

The equation can be written as seen below. You only need a y-intercept and slope to write the equation.

y=-2x+3                             (it intercepts at a y-value of 3).

I hope this helps!
5 0
3 years ago
Edith’s age is 1/4 of Ronald’s age. In how many years will Edith’s age be 1/3 of Ronald’s age if Edith is 20 years old?
ruslelena [56]

Answer:

10

Step-by-step explanation:

x = Edith's age = 20 years

y = Ronald's age

x = 20 = y/4

y = 20×4 = 80 years

in z years we have

(x + z) = (y + z)/3

(20 + z) = (80 + z)/3

3(20 + z) = 80 + z

60 + 3z = 80 + z

60 + 2z = 80

2z = 20

z = 10

in 10 years Edith's age will be 1/3 of Ronald's age.

then Edith will be 30, and Ronald will be 90.

30 = 90/3

correct.

7 0
2 years ago
Which equation can be used to find 75 percent of 200?
Shtirlitz [24]

Answer:

The first equation

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
X^{2} -25=0 Please help meeee
-BARSIC- [3]

Answer:

x=5,x=-5

Step-by-step explanation:

x^2-25=0

Add 25 to both sides:

x^2-25+25=0+25

x^2=25

Square root both sides:

x=\sqrt{25},\:x=-\sqrt{25} (Since a negative number multiplied by itself gives positive, there are two answers.)

x=5,x=-5

8 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for x 15x+5x 14x-6
    10·1 answer
  • Please help, Geometry I have NO idea how to do this. Both Pictures! (#36, #37) WILL MARK BRAINLIEST!
    8·1 answer
  • You are 5 feet tall and cast a 10 foot shadow. A flagpole nearby casts a shadow that is 28 feet. Which equation can you use to s
    12·2 answers
  • 20 PTS QUICK QUICK PLEASE! 1 MINUTE ONLY! WITH EXPLANATION PLEASE! ANSWER 3 QUESTION AND YOU WILL BE THE BRAINLIEST!
    11·1 answer
  • How many terms are in 8x+2y+6
    12·1 answer
  • URGENT! What is the equation of this graph? It is a cosine graph whose equation will fit into terms of y=acos(b(x-c))+d
    9·1 answer
  • PLEASE HELP ME ASAP AND THANK YOU
    5·1 answer
  • What is the number 39.90<br>rounded off to one decimal<br>Place.​
    5·2 answers
  • Find the solution of each equation using the given replacement set please help ASAP
    15·1 answer
  • Pls help will give brainliest!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!