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
KIM [24]
3 years ago
11

6x - 9= y y= -3x using the system of linear equation by substitution Help please! This is due really soon

Mathematics
1 answer:
solniwko [45]3 years ago
6 0

Answer:

x = 1 and Y = -3

Step-by-step explanation:

Rewrite equations:

y=−3x;6x−9=y

Step: Solvey=−3xfor y:

y=−3x

Step: Substitute−3xforyin6x−9=y:

6x−9=y

6x−9=−3x

6x−9+3x=−3x+3x(Add 3x to both sides)

9x−9=0

9x−9+9=0+9(Add 9 to both sides)

9x=9

9x

9

=

9

9

(Divide both sides by 9)

x=1

Step: Substitute1forxiny=−3x:

y=−3x

y=(−3)(1)

y=−3(Simplify both sides of the equation)

Answer:

x=1 and y=−3

You might be interested in
What is the best and easiest method to use to find sides A and B?
Alchen [17]

what is the best and easiest method to use to find sides A and B?

B

3 0
3 years ago
A tennis team has won 15 out of 20 matches they played this season. How many additional matches must the team win in a row to ra
LuckyWell [14K]
You need to win 30 matches in a row to raise its winning percentage to 90%
7 0
3 years ago
SOLVE <br><br> x + 3y = -1<br><br> y = x - 7<br><br><br><br><br><br> Write the solution below.
ki77a [65]

Answer:

x= 5 ........................ .......

7 0
2 years ago
Ian needs to save at least $85.00 for a new pair of basketball shoes. He has $25.00 in his piggy bank, and can save $12.00 from
sweet [91]

Answer:

x = 6; 6 weeks

Step-by-step explanation:

Hi!!

Okay, so here is the equation needed to solve:

85.00 = 25.00 + 12.00x

Subtract 25 from both sides

85 -25 = 25 - 25 + 12x

Then, you get:

55 = 12x

Divide 55 by 12

55/12 =x

so x = 6

Hope this helps!

7 0
3 years ago
Please help I will mark brainliest for correct answers!​
Talja [164]

Answer:

E

Step-by-step explanation:

Well there is a lot more higher numbers than lower numbers, so the box would be closer to the right, and the left rectangle piece should be smaller than that of the left rectangular piece.

7 0
3 years ago
Read 2 more answers
Other questions:
  • There are ten people in the Baking Club, including Mark. They choose $3$ people to form an executive committee. How many possibl
    7·1 answer
  • A dolphin starts at the surface of the water. It dives down at a rate of 3 feet per second. If the water level is zero, what rea
    15·1 answer
  • Help me please with numbers 8-11 thanks
    5·1 answer
  • I need help is it A B C or D
    8·1 answer
  • I Need Assistance With These
    8·2 answers
  • Suppose a circle has its center at the origin. What is the equation of the circle
    13·1 answer
  • Thomas borrowed 4800$ to buy a new car. He will be paying 96$ a each month for the next 60 months. Find the simple interest rate
    5·1 answer
  • The first row are input, x the second row is output, y .
    10·1 answer
  • In a wildlife preserve, a random sample of the population of 150 raccoons was caught and weighed. The results, given in pounds,
    8·1 answer
  • Help ASAP. This is vital to my math grade. I will award 100 points and Brainly to whoever can give me the correct slope. I need
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!