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
Helen [10]
2 years ago
13

-3x+3y=9 2x−7y=−14 ​

Mathematics
1 answer:
nignag [31]2 years ago
6 0
Step: Solve
−
3
x
+
3
y
=
9
for x:
−
3
x
+
3
y
=
9
−
3
x
+
3
y
+
−
3
y
=
9
+
−
3
y
(Add -3y to both sides)
−
3
x
=
−
3
y
+
9
−
3
x
−
3
=
−
3
y
+
9
−
3
(Divide both sides by -3)
x
=
y
−
3

Step: Substitute
y
−
3
for
x
in
2
x
−
7
y
=
−
14
:
2
x
−
7
y
=
−
14
2
(
y
−
3
)
−
7
y
=
−
14
−
5
y
−
6
=
−
14
(Simplify both sides of the equation)
−
5
y
−
6
+
6
=
−
14
+
6
(Add 6 to both sides)
−
5
y
=
−
8
−
5
y
−
5
=
−
8
−
5
(Divide both sides by -5)
y
=
8
5

Step: Substitute
8
5
for
y
in
x
=
y
−
3
:
x
=
y
−
3
x
=
8
5
−
3
x
=
−
7
5
(Simplify both sides of the equation)

Answer:
X=-7/5 and y= 8/5
You might be interested in
BROO HELP ME WITH THIS QUESTION BROOOOOOOOOOOOOOOOOOOOOOOOO
Veseljchak [2.6K]

Answer:

x=y

Step-by-step explanation:

becuase I need pointssss

3 0
2 years ago
PLEASE HELP!!!!!
Vadim26 [7]

Answer:

Step-by-step explanation:

9x - 1 / 2 + 9/2 x = 0.128886 (43)

2 / 5x - 1b = 4/3 - 1 - 1 = 2x (4)

= x1 + 24 - 3/4 + 8

9/3 - 1 x = /3

6 0
2 years ago
Please hurry<br>hurry<br>hurry<br>hurry<br>hurry
Triss [41]
It’s B because it’s smaller than -3 but slightly greater than -4
6 0
3 years ago
Read 2 more answers
Supplementary angles measure _____ degrees?​
Oliga [24]

my answer

90°to 180°degrees

4 0
3 years ago
Explain why 8 x ¾ is the same as adding ¾ + ¾ + ¾ + ¾ + ¾
Mekhanik [1.2K]

8 x ¾ is the same as adding ¾ + ¾ + ¾ + ¾ + ¾

because, when you are adding 3/4

8 times, you are 3/4 plus itself,

eight times,

so you are doing 3/4*8

5 0
2 years ago
Read 2 more answers
Other questions:
  • the sum of the interior angles of the polygon is 20 right angles. how many sides does the polygon have?
    5·1 answer
  • 7 is greater than w, and w is greater than 2 <br><br> use w only once in your inequality
    5·1 answer
  • AYE PLS HELP ASAP !! MARKIN DA BRAINIEST !!!
    8·1 answer
  • 84 times four thirds
    6·1 answer
  • Anyone know this? thank you
    5·1 answer
  • A 2 digit square whose digits add up to an even number
    7·1 answer
  • I have a test in the 8th grade its in my language plz help me i need to pass
    10·1 answer
  • What is the area of a 10 inch circle
    6·1 answer
  • Can someone pls help with this i’m so confused
    14·1 answer
  • For the probability experiment of selecting a chip at random from a bag
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!