demayeshi011
demayeshi011 demayeshi011
  • 10-07-2022
  • Mathematics
contestada

3. Find the point of intersection of the graphs for each system. a.2x + 2y = 3 and 6x-6y = -1​

Respuesta :

Аноним Аноним
  • 10-07-2022

Given :

  • 2x + 2y = 3 (Equation #1)
  • 6x - 6y = -1 (Equation #2)

Multiply Equation #1 by 3 :

  • 3(2x + 2y) = 3(3)
  • 6x + 6y = 9 (Equation #3)

Add Equations 2 and 3 :

  • 6x - 6y + 6x + 6y = -1 + 9
  • 12x = 8
  • x = 2/3

Now, input x in Equation #3 to find y :

  • 6(2/3) + 6y = 9
  • 4 + 6y = 9
  • 6y = 5
  • y = 5/6

∴ Hence, the point of intersection is (2/3, 5/6).

Answer Link

Otras preguntas

What is Down ? Where is it found ?
Karen Gaines invested ​$10,000 in a money market account with an interest rate of 3.25​% compounded semiannually. Three years​ later, Karen withdrew the full am
Which expression is equivalent to (x – 4)(2x2 – 3x + 7)? A. -4x(2x2 – 3x + 7) B. x(2x2 – 3x + 7) - 4 C. x(2x2 – 3x + 7) + 4(2x2 – 3x + 7) D. x(2x2 – 3x + 7) - 4
What is the least common denominator for the fractions 1/3 and 1/6
write a message to alex giving some advice​
A steam engine is working. What is the transformation of energy?​
A few million years ago, volcanic eruptions caused a large region to be covered by lava. The lava eventually cooled, which resulted in the formation of large am
What was ratified two years after the constitution?
Find an equivalent expression for -3(2x+5)-(x-1)
True or False: limx➡️0^+ e^-5/x =0