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
gtnhenbr [62]
3 years ago
10

Y=-3x y=6x-9 in substitution method

Mathematics
2 answers:
Neporo4naja [7]3 years ago
8 0
Hi

y = -3x
y = 6x-9 ⇒

y = 6x-9 ⇒ -3x = 6x-9 ⇒ -3x-6x = -9 ⇒ -9x = -9 ⇒ x = -9/-9 ⇒ x = 1

y = -3x
y = -3(1)
y = -3

Answer: x = 1 and y = -3


Anna007 [38]3 years ago
6 0
The two equations given in the question are
y = - 3x
And
y = 6x - 9
Let us now substitute the value of y from the first equation to the second equation, we get
y = 6x - 9
- 3x = 6x - 9
-3x - 6x = - 9
- 9x = - 9
Multiplying both sides of the equation by -1 we get
9x = 9
x = 9/9
   = 1
Now let us put the value of x in the first equation, we get
y = - 3x
   = - (3 * 1)
   = - 3
You might be interested in
Augusto wants to prove to his parents that watching TV while he does his homework will help him get better grades. He decides to
Soloha48 [4]

I think had that same question
7 0
2 years ago
The sum of three consecutive numbers is 276. What is the smallest of these intengers?
shtirl [24]

Answer:

91

Step-by-step explanation:

Let x be the smallest one:

● x is the first number

● x+1 is the second number

● x+2 is the third number

The sum of these numbers is 276

● x+(x+1)+(x+2) =276

● x+x+1+x+2 = 276

● 3x + 3 = 276

Substract 3 from both sides:

● 3x+3-3 = 276-3

● 3x = 273

Divide both sides by 3

● (3x)/3 = 273/3

● x = 91

So the smallest one is 91

5 0
3 years ago
How do i multiply negative exponents
katrin2010 [14]
You add the exponents together when multiplying 
4 0
3 years ago
Read 2 more answers
Which choice is equivalent to the product below
tino4ka555 [31]
The answer to the question is d

7 0
3 years ago
Due 4/29/22. add explanation to please if you can, so that i can understand better
vagabundo [1.1K]

Answer:

48

240 ÷ 5 = 48

Please Mark Brainliest If This Helped!

8 0
2 years ago
Other questions:
  • Jessica is paid $8.50 an hour and also earns a 15% commission on any sales she makes. In one week, if she worked 30 hours and ha
    12·1 answer
  • Nyoko needs to be at school at 7:45 AM. It takes her 15 minutes to walk to school, 5/12 hour to eat breakfast, 0.7 hour to get d
    5·1 answer
  • Solve the proportion y/22=3/11
    7·1 answer
  • How do i estimate 48.03 + 7.55 by rounding to the nearest whole number?
    9·2 answers
  • (X^2+y^2+x)dx+xydy=0<br> Solve for general solution
    8·1 answer
  • Two whole numbers closest to 200
    13·1 answer
  • Five friends each buy a shirt that cost $15 and a pair of shoes that cost $50. Write an expression to show how much total money
    14·1 answer
  • Can anybody help me plz I really need help !!!!
    12·1 answer
  • A triangle is rotated 90° about the origin. Which rule describes the transformation? (x, y) -(-x, -y) (x, y) - (-y, x) (x, y) -
    7·1 answer
  • Write an Inequality statement that is represented by the following graph
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!