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
Nuetrik [128]
3 years ago
9

Solve by substitution x-y=12 x+y=18

Mathematics
1 answer:
slamgirl [31]3 years ago
3 0
X = y + 12. You then substitute or plug in that from the first equation into the second equation. You get (y+12)+y=18, then you simplify to get your y value. In this case y = 3. The you can plug your y value into either equation. (x+3=18) or (x-3=12) or (x=3+12) either way you get x=15 and y=3.
You might be interested in
A television and DVD player cost a total of $1230. The cost of the television is two times the cost of the DVD player. Find the
nikitadnepr [17]

Answer:

Television = 820

DVD Player = 410

Step-by-step explanation: Imagine the television  as 2, and the DVD player as 1. If you’re were to draw it out with boxes, you’d see that the tv  has two boxes and the DVD player has 1 box. All are exactly the same amount, and there are a total of three boxes. So divided 1230 by 3 and you get 410. Using the idea of the boxes, the DVD player get’s one 410, and the tv gets two 410s, or 820.

6 0
2 years ago
I need your help right now!
Orlov [11]

Answer: B

Step-by-step explanation: I think if it is wrong i am so so so so so so sorry but i am 79.99999% positive

6 0
3 years ago
Read 2 more answers
What is the value of x?
Nesterboy [21]
This is a special 60-30-90 triangle, and the angle measure of x is 4 \sqrt{3} .
8 0
3 years ago
Read 2 more answers
Simplify<br><br> Will mark brainliest, please show work if possible
Reil [10]
The answer for this question is 8/1

5 0
3 years ago
Read 2 more answers
Write the expression in complete factored form. 4c(y+3) - (y+3)=
Anuta_ua [19.1K]

Answer:

(4c-1)(y+3)

Step-by-step explanation:

4c(y+3) -(y+3)

=(4c-1)(y+3)

8 0
3 years ago
Other questions:
  • Fred bought 5 liters of liquid laundry detergent, 3,270 millimeters of fabric softener, and 2.6 liters of bleach
    5·1 answer
  • The graph shows the solution to which system of inequalities?
    11·1 answer
  • What percent of 21 is 7?
    6·2 answers
  • A simple random sample of size nequals81 is obtained from a population with mu equals 83 and sigma equals 27. ​(a) Describe the
    10·1 answer
  • How to change one third into twelfths
    7·2 answers
  • Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.5
    8·2 answers
  • Please help! I do not understand.
    14·2 answers
  • Select the correct answer.
    6·1 answer
  • Can you help on question 22?!
    8·1 answer
  • Write the resulting inequality.<br><br> −9 ≤ −1; Add 10 to both sides
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!