vgutierrez01 vgutierrez01
  • 01-12-2020
  • Mathematics
contestada

Question 6 (1 point)
What is the solution to the systems of equations below?
4x - y = 20
-2x - 2y = 10
Blank 1:

Respuesta :

2307391 2307391
  • 01-12-2020

Answer:

y=-8 and x =3

Step-by-step explanation:

4x - y = 20 and -2x - 2y = 10

if we multiply the second equation by -2 we have:

4x + 4y = -20 and 4x - y = 20

we subtract the two equations and we have

5y = -40 so y=-8 which means x= 3

Answer Link

Otras preguntas

Why did Islam spread quickly following Mohammed‘s death
In IJK, the measure of K=90°, JI = 53, IK = 45, and KJ = 28. What ratio represents the sine of I?
Simplify:6×⁷y⁴/3×⁵y²a. 2x¹2y 6x7y!b. 2xyc. 2x³y²d. 2x²y6ABCD​
7. What is the molar mass of each of the following elements? a) helium, He(s) c) potassium, K(s) b) manganese, Mn(s) d) boron, B(s)
5% of what is 30 plz answer asap
Subtract. Write your answer as a mixed number in simplest form. 8 1/8 - 3 3/8
Jenny has 3 times as many storybooks as David. David has 60 fewer storybooks than Huiling. They have 460 storybooks altogether. How many storybooks does Jenny h
list down the people who can help make good choice​
Please help! Asap please 1/2+?Blank?=7/8
Awarding 50 points and brainliest if you get these two tricky coordinate geometry questions right :D