noradaugherty noradaugherty
  • 16-01-2020
  • Mathematics
contestada

Solve the system of equations: y=4x-3, y=-2x+9

Respuesta :

lordsonmyk
lordsonmyk lordsonmyk
  • 16-01-2020

Answer:

y= 5

x= 2

Step-by-step explanation:

y = 4x - 3 ... (1)

y= -2x +9.... (2)

Multiply equation (2) by 2

It becomes;

2y = -4x +18 ...(3)

Add equation (3) and (1)

It becomes;

3y = 15

y = 5.

Substitute y = 5 in equation (1)

It becomes;

5 = 4x -3

Collecting like terms:

4x = 5 + 3

4x = 8

x = 8/4

x = 2

Answer Link

Otras preguntas

Which of the following is an equivalent expression to x2 + 6x +11?
Several hours after departure the two ships described to the right are 50 miles apart. If the ship traveling south traveled 10 miles farther that the other how
Which of the following is a vertex of the figure shown below after a reflection in the y axis?
a 60m long train moving on a straightlevel track passes a pole in 5 seconds. find thespeed of the train and the time it will take to cross a 540m long bridge.​
Anyone know what to do for Punnett Squares?
the area of the following triangle is...?
Unscramble Steniktanurm
Lynette has a metal doorstop with the dimensions shown. Each cubic centimeter of the metal in the doorstop has a mass of about 8.3 grams. Find the volume of th
Which type of metal ions tends to absorb light in the visible range?
HELP!!! Question 3 (2 points) What is the phenotypic ratio of the F2 generation?