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
Reika [66]
3 years ago
14

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Mathematics
1 answer:
poizon [28]3 years ago
8 0

Answer:

<h2>x = -3, y = 6 → (-3, 6)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}2y=-x+9\\3x-6=-15&\text{add 6 to both sides}\end{array}\right\\\left\{\begin{array}{ccc}2y=-x+9\\3x=-9&\text{divide both sides by 3}\end{array}\right\\\left\{\begin{array}{ccc}2y=-x+9\\x=-3\end{array}\right\qquad\text{put the value of x to the first equation}\\\left\{\begin{array}{ccc}2y=-(-3)+9\\x=-3\end{array}\right\\\left\{\begin{array}{ccc}2y=3+9\\x=-3\end{array}\right\\\left\{\begin{array}{ccc}2y=12&\text{divide both sides by 2}\\x=-3\end{array}\right\\\left\{\begin{array}{ccc}y=6\\x=-3\end{array}\right

You might be interested in
Solve the equation 7x - 4 =4x -1
algol13

Answer:

x= 1

Step-by-step explanation:

7x-4x= -1+4

3x = 3

x= 1

7 0
3 years ago
Read 2 more answers
Help with a quiz Join my quizizz at joinmyquiz.com Code is 587844 the quiz is about Music (Rap, Hip-Hop, R&amp;B) GAME WILL STAR
777dan777 [17]

Answer:

but its 12:15 ._.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Simplify 5(-2)(-11)<br><img src="https://tex.z-dn.net/?f=5%28%20-%202%29%28%20-%2011" id="TexFormula1" title="5( - 2)( - 11" alt
hram777 [196]
5(-2) = -10, so    5(-2)(-11) = (-10)(-11) = 110
3 0
3 years ago
Iago is interested in money. He has a collection of bills in his pocket. He finds that he has two fewer $20 bills than he does $
Colt1911 [192]

Let x be the number of $10 bills in Iago pocket.

1. If he has twice as many $1 bills as $10 bills, then he has (2x) $1 bills.

2. He has two fewer $20 bills than he does $10 bills, then he has (x-2) $20 bills.

3. He has three more $5 bills than $10 bills, then he has (x+3) $5 bills.

In total he has $160 that is x·10+2x·1+(x-2)·20+(x+3)·5.

Equate these two expressions and solve the equation:

x\cdot 10+2x\cdot 1+(x-2)\cdot 20+(x+3)\cdot 5=160,\\ \\10x+2x+20x-40+5x+15=160,\\ \\37x=160+25,\\ \\37x=185,\\ \\x=5.

Thus, he has

  • 5 bills for $10;
  • 10 bills for $1;
  • 3 bills for $20;
  • 8 bills for $5.
3 0
3 years ago
Lucy wants to make a different types of cheesecake it's cheesecake uses 2/3 pound of cream cheese she has 2 lb of cream cheese h
slava [35]

3 would be your answer

4 0
3 years ago
Other questions:
  • Solve the quadratic equation by graphing: (2 – 7) + 2 = 38 CHOOSE ALL THAT APPLY
    5·1 answer
  • Increase 25 by 23% using a multiplier
    13·1 answer
  • 10 friends share six pizzas equally. What fraction of a pizza does each friend get?
    14·1 answer
  • Adam has $2.15 in nickels, dimes and quarters in his pocket. If the number of dimes is 4 less than the number of nickels, and 5
    9·2 answers
  • Guys please help me I don’t understand
    12·2 answers
  • Find the volume of the given shape. Round your answer to the nearest<br> tenth if necessary.<br> *
    12·1 answer
  • X (0,6) y (-3,15) what are the slope and y intercept
    11·1 answer
  • Pls answer all 3 parts
    12·2 answers
  • The line of best fit was drawn and the equation for the height (h) and weight (w) was determined to be
    7·1 answer
  • Please help me answer this
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!