djgenesisgeronp1qozx djgenesisgeronp1qozx
  • 04-10-2018
  • Mathematics
contestada

Question 5

Solve the following system of equations by using the substitution method.
y = 6x – 11
-2x – 3y = -7

(1, 2)

(2, 1)

(-3, 1)

(2, 4)

Respuesta :

lisboa lisboa
  • 04-10-2018

answer is (2,1)

y = 6x – 11

-2x – 3y = -7

Substitute 6x - 11 for y in the second equation

-2x – 3(6x-11) = -7

-2x – 18x +33 = -7

-20x + 33 = -7

Now subtract 33 on both sides

-20x   = -7 - 33

-20x = -40 ( divide by -20 on both sides)

x= 2

We know y = 6x -11

Plug in 2 for x  and find out y

y = 6(2) -11= 12 -11 = 1

So answer is (2,1)


Answer Link

Otras preguntas

Draw net and find the surface area and volume.
Given: AKLM is a trapezoid, AK=13 LM=14, KL=5, AM=20 Find: h
Which definition gives the meaning of the word mollify as it is used in the first sentence? The councilwoman said, “I’d like to mollify your concerns over the
What was the impact of World War II on U.S. domestic policy?
3: Keith purchases a cell phone plan, which includes a cell phone and cell phone service. He makes a deposit of $100 for the cell phone and then pays $45 per mo
How do modern people explain nature?
which one does pass through line of wire during electric current flow? electrons or protons?​​
Imagine your flying from the equator to the North Pole. How would you plan your route to account for the Coriolanus effect
R\J please help important
2x-2=10x+ 20 How do I solve for x