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
sweet-ann [11.9K]
3 years ago
15

If 3x +y=12 find x when y=-15

Mathematics
1 answer:
maw [93]3 years ago
8 0

Answer:

x=9

Step-by-step explanation:

3x+y=12

3x+(-15)=12

3x=27

3/3= 27/3

x=9

You might be interested in
What is the fraction 2-5 2 on top and 5 on bottom ) equivalent to?
Andrei [34K]

To get to simplest form find the greatest common factor, or the gcf, of both numbers. To do that find all of the factors and find the one with the highest value both numbers share. So 30 would have factors of 1, 2, 3, 5, 6, 10, 15, and 30, and 42 would have the factors of 1, 2, 3, 6, 7, 14, 21, and 42. Both numbers share the factors of 1, 2, 3, and 6 so the gcf is 6. Now divide both numbers by six to get your answer.

Answer: 5/7

4 0
3 years ago
The line of reflection is the ____. y-axis, center of rotation, x-axis
nydimaria [60]

Answer:The line of reflection is the y axis

Step-by-step explanation:

8 0
3 years ago
What is the equation of the line
Dovator [93]

Answer:

y=-x+3

Step-by-step explanation:

6 0
3 years ago
Which of the following figures has reflected over the y-axis? 40 POINTS! PLEASE ANSWER!
Sonja [21]

Answer:

the third one

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
I ONLY HAVE 2 MINS PLS HELP
stellarik [79]

Answer:

Forgive me if I am wrong, but I beleive the answer is F

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • If f(x) = 3x2 + 1 and g(x) = 1 – x, what is the value of (f – g)(
    10·2 answers
  • A student is trying to solve the set of two equations given below: Equation A: x + z = 6 Equation B: 3x + 2z = 1 Which of the fo
    7·2 answers
  • B(n)=4−6(n−1) Find the 4th term in the sequence.
    14·1 answer
  • 4 yd 8 in + 6 yd 6 in=?
    12·1 answer
  • Which number has the same absolute value as -21
    15·2 answers
  • Help me asap plssss !! will crown brainliest !!
    13·1 answer
  • I have a riddle for you I have 31 82,400,060 tens and 100 hundreds
    6·1 answer
  • 0.002191 in scientific notation
    15·2 answers
  • Plz help! Giving a lot of points! :)
    9·2 answers
  • Write the rule for the table, use x for the input.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!