Ilovebaby Ilovebaby
  • 18-08-2020
  • Mathematics
contestada

solve the system by adding or subtracting
-3x-3y=9
3x+8y=6

Respuesta :

CoalitionStorm
CoalitionStorm CoalitionStorm
  • 18-08-2020

Answer:

x = -6 y = 3

Step-by-step explanation:

Adding the two equations and you get, -3x-3y + 3x+8y= 6+9

=> 5y = 15

=> y = 3

Plug y in each equation

-3x -3(3) = 9

-3x -9 = 9

-3x = 18

x = -6

3x + 8(3) = 6

3x +24 = 6

3x = -18

x = -6

Answer Link

Otras preguntas

please answer this question​
If the diameter of the small pizza is 8 inches, what’s the pizza’s area in square inches? Answers: 202.1 50.3 or 223.5
ANSWER FAST AND CORRECT THEN ILL GIVE BRAINLIESTT!!!! What is the density of a metal with a mass of 450 grams and a volume of 5 cubic centimeters?
1. Mike has four cards numbered one to four. He draws one card and records the number. Calculate the probability that the result will be: A a multiple of three
Evaluate the function at the given values. h(x) = x² – 3x + 2 a. h(2) b. h(-2) c. h(0) a. h(2)=
First plot 1 and -6 on the number line below. Then answer the parts below. -10 -5 0 5 10 Х $ ? (a) Choose the correct statement. O 1 is located to the left of -
100 points!!! Does anyone know how to write the correct hiragana for the kanji ? See the attachment.
What are cryptograms?Name any two divisions of it?​
according to the narrator, what is trapped be hide the wallpaper in the story "the yellow wallpaper"
BRAINLIST+DONT SCAM ME Milan uses a probability simulator to roll a six-sided number cube 100 times and to flip a coin 100 times. The results of the experiment