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
sergejj [24]
3 years ago
8

2x+3+x=18 can you guys help the developer solve this

Mathematics
2 answers:
IRISSAK [1]3 years ago
5 0
X=5
2x+3+x=18
Combine like terms
3x+3=18
Balance
3x+3=18
-3 -3
3x=15
__ __
3. 3
X= 5
emmainna [20.7K]3 years ago
3 0

2x+3+x=18

2x+x= 3x

3x+3=18

18 - 3 = 15

3x = 15

x = 3

You might be interested in
2. Elena finds that the area of a house on a scale drawing is 25 square inches. The
likoan [24]

Answer:

The scale of the drawing is \frac{1}{9}\ \frac{in}{ft}

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z ----> the scale factor

x ----> the area of an house on a scale drawing in square inches

y ---> the actual area of the house in square feet

z^2=\frac{x}{y}

we have

x=25\ in^2

y=2,025\ ft^2

substitute

z^2=\frac{25}{2,025}

simplify

z^2=\frac{1}{81}

square root both sides

z=\frac{1}{9}\ \frac{in}{ft}

therefore

The scale of the drawing is \frac{1}{9}\ \frac{in}{ft}

3 0
4 years ago
Read 2 more answers
What is the range of the function graphed above? A. B. C. D.
Artist 52 [7]

Answer:

2 -3

Step-by-step explanation:

8 0
4 years ago
I need help on this question
jolli1 [7]

7x + 12 = 12

      -12   -12

subtract 12 from both sides of the equation as seen above

7x = 0

divide both sides by 7 to isolate the variable

x = 0

B is the correct option.

6 0
3 years ago
Read 2 more answers
Simplify the following 20 1/4 - 9 1/2 + 11
Y_Kistochka [10]

Answer:

21 3/4

Step-by-step explanation:

3 0
3 years ago
Ax + c = R (solve for x)
sp2606 [1]
Ax + c = R     (subtract c from each side)

Ax + c - c = R - c

Ax = R - c     (divide A from each side)

Ax/A = (R-c)/A

x = \frac{R-c}{A}  <-answer

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of x?
    9·1 answer
  • Which expression is equivalent to 23-5
    8·1 answer
  • The variable z is inversely proportional to x. When x is 16, z has the value 0.9375.
    12·1 answer
  • Pls help ASAP! I will make you brainliest. (Number 14.)
    13·1 answer
  • Supongamos que el porcentaje R de personas que responden al anucio de un producto nuevo en un periodico y que lo compran despues
    8·1 answer
  • Why can't the graphing calculator be used to solve (or approximate solutions to) all polynomial equations?
    7·1 answer
  • Is 1709 divisible by 2 3 56 9 and 10
    10·1 answer
  • What is the rational number between -1/6 and -2/6
    7·1 answer
  • 1 Find the measure of angle B <br>​
    5·1 answer
  • Ronnie charges his customers a flat fee of $25 to fix a computer. Then, he charges $30 for each hour he spends working on the co
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!