kcaesar2323 kcaesar2323

03-11-2021
Mathematics

contestada

solve the following system of equation 5x + 4y = -4 and 3x + 4y =12

Respuesta :

ridmitharuka ridmitharuka

03-11-2021

Answer:

x=-8 y=9

Step-by-step explanation:

5x + 4y = -4----(1)

3x + 4y =12-----(2)

(2)-(1)

(3x+4y)-(5x+4y)=12-(-4)

3x+4y-5x-4y=12+4

-2x=16

x=16/-2

x=-8

substitute in (1)

5(-8)+4y=-4

-40+4y=-4

4y=-4+40

4y=36

y=36/4

y=9

Answer Link

Otras preguntas

what does the symble for a fraction

Which statements are true regarding independent clauses? Select all that apply. They express a complete thought. They can stand alone as a complete sentence.

Who created this art

Describe the trend in the scatter plot.A:Negative trendB:positive trendC:no trend

The civil rights laws in the new amendments made everyone treat each other as equals. True or false?

What six countries is indian subcontinent composed of

NEED HELP QUICKLY....A 9.0Ω resistor is connected in series with another resistor and a 6.0 V battery. The current in the circuit is 0.60 amps. Calculate the r

Can i have some help with this? Which of the following contains a subject and verb, and can stand alone as a sentence. A. Independent clause B. Coordinating co

If 33 laptops cost 30,000 in dollars, which proportion could be used to determine the cost of 11 laptops?

The total cost of 5 boxes of pasta is $13. There are 12 ounces of pasta in each box. Each box of pasta cost the same amount. What is the cost in dollars of the