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
alex41 [277]
2 years ago
9

I NEED HELP WITH NUMBER 2

Mathematics
1 answer:
sashaice [31]2 years ago
4 0

5y+2x = -7~~~~~......(i)\\\\y = -2x +5 ~~~~~~.....(ii)\\\\(i) -(ii):\\\\5y+2x -y = -7-(-2x+5)\\\\\implies 4y +2x = -7 +2x -5\\\\\implies 4y +2x -2x = -12\\\\\implies 4y = -12\\\\\implies y = - \dfrac{12}4 = -3\\\\\\\text{Substitute}~ y=-3~ \text{in equation (ii):}\\\\\\-3 = -2x +5\\\\\implies 2x = 5 +3 \\\\\implies 2x = 8\\\\\implies x = \dfrac 82 =4\\\\\text{Hence,}~ x = 4

You might be interested in
Which are the coordinates of the transformed point?
marysya [2.9K]

Answer:

Did you ever get the answer

Step-by-step explanation:

4 0
3 years ago
Determine whether the statement is true or false. If it is true, explain why.
Over [174]
True.

Since y^4 \geq 0, y' = -1 - y^4 \ \textless \  0 and the solutions are decreasing functions.
8 0
3 years ago
What are some ways you can create a new system of equations based on a given system?
docker41 [41]
By adding/ subtraction systems
3 0
3 years ago
A group. of 5 friends are sharing 2 pounds of trail mix.Write a division problem and a fraction to represent this situation.
sergejj [24]
5 divided by 2 or 2/5
4 0
3 years ago
two bicycle riders start from the same point and ride in opposite directions. one rider is moving twice as the other. in 3 hours
Likurg_2 [28]

Step-by-step explanation:

let X = speed of slow bicycle rider

2x=speed of fast bicycle rider

3(x+2x)=72

X=8mph(slowest bicycle rider)

2x=16mph(fastest bicycle rider)

5 0
2 years ago
Other questions:
  • Write an equation that is parallel to y = -4x - 1 and passes through (-2 , 4)
    10·1 answer
  • Find the slope of the line that contains these points (-2,5) (-4,11)
    5·2 answers
  • Subtract the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending pow
    15·1 answer
  • If 3b+2-6b=32+5b-2b, find b
    5·2 answers
  • Solve 2 cube root 8x+9=5
    9·1 answer
  • Select the inequality below that is one of the two inequalities used to solve: |3+2x|<11
    10·1 answer
  • Find x in the diagram
    11·1 answer
  • If vampires can't see their reflections, why is their hair always so neat?
    14·2 answers
  • Find the value of x, when log 10x + log 2 = log 60
    9·1 answer
  • PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!