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
laila [671]
3 years ago
13

Y-3x=2 y=-2x-8 how do i solve this by substitution

Mathematics
2 answers:
11111nata11111 [884]3 years ago
3 0
\left \{ {{y-3x=2} \atop {y=-2x-8}} \right. \\\\Substitute\ second\ equation
 to\ first:\\\\-2x-8-3x=2\\-2x-3x=2+8\\-5x=10\ \ \ \ \ \ |:-5\\x=-2\\\\y=-2\cdot(-2)-8\\y=4-8\\y=-4\\\\ \left \{ {{y=-4} \atop {x=-2}} \right.
kupik [55]3 years ago
3 0
Y-3x=2
y=-2x-8
-2x-8-3x=2
-5x-8=2 add 8 from both side
-5x=10 divided -5 both side
x=-2
You might be interested in
What is heavier 6 liter or 2 kg
ASHA 777 [7]

Answer:

6

Step-by-step explanation:

6 0
3 years ago
Will award brainliest for the correct answer!
Darina [25.2K]
The answer is x^2 (or x squared) + 10x + 25 units. Pretty sure this is a multiple choice question.
5 0
2 years ago
Three vertices of a rectangle are given. Find the coordinates of the fourth vertex. (-3,-3) (7,-3) (7,2)
Alik [6]
The answer is D.

(-3, -3), (-3, 2)
 (7, -3),  (7, 2)
7 0
3 years ago
Help I need to find x and I need to show work plz help and thanks
const2013 [10]
6x-9x-4=-2x-2
3x-4=-2x-2 
3x+2x=-2+4
5x= 2
x=2/5
3 0
3 years ago
How do you solve 6 3/4 divided by 2 1/2
Phantasy [73]
Answer:
2 7/10

Explanation:
Sorry, don’t have time to explain but use the KCF (Keep, Change, Flip) strategy
6 0
3 years ago
Other questions:
  • give me a multistep problem that has at least two amounts of elapsed time a problem that require finding a starting time or endi
    12·1 answer
  • The coordinates of the vertices of △RST are R(−3,1), S(−1,4), and T(3,1) .
    10·2 answers
  • What pair of numbers has a gcf of 3
    10·1 answer
  • Please help me out answer quick
    12·1 answer
  • If a triangle has side lengths of 5.6 yards, 7.1 yards, and x yards, find the range of possible values of x.
    7·1 answer
  • A detective has interviewed four witnesses to a crime. From the stories of the witnesses the detective has concluded
    12·1 answer
  • A city has a populationof 370,000 people. Suppose that each year the population grows 7%. What will the population be after 8 ye
    8·1 answer
  • Please HELP!!!!! Will give brainlyest!!! (Image attached.)
    8·1 answer
  • PLEASEE ANSWER THIS I BEG ILL ADD U AS BRAINLIST!
    9·1 answer
  • Given the expressions are equivalent (3x + 2)^2 - (mx^2 + 7) = 5x^2 + 12x - 3 2 - 3 What is the value of m?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!