millerluke millerluke

02-10-2020
Mathematics

contestada

Solve the system by substitution.
3x +2y=-21
x+y=-9

Respuesta :

Ukmmmmm Ukmmmmm

02-10-2020

Answer:

Step-by-step explanation:

3x +2y=-21 and x+y=-9

3x +2y=-21 and x = -9-y

=> 3(-9 - y) + 2y = -21

-27 -3y + 2y = -21

-y = 6

y= -6

=> x = -9+6= -3

Answer Link

Otras preguntas

How do I change 36 to 360

a ball is tossed vertically upward rises, reaches it's highest point, and then falls back to its starting point. during the time, the acceleration of the ball a

can someone help me on this question! please! :)Evaluate the formula V= BH/3; B = 36 in.² and h = 11 in.

list the six enternal parts or peripherals of a computer system and identify which are output and which are input devices?

The volume of a cube is given by V= x cubed where x is the length of an edge of the cube. A cube shaped end table has the volume of 3 3/8 cubic feet. What is th

what is £42 increased by 10%

Solve proportions 13/25 = p/100

What factors add to get -18 and multiply to get 75?

David bought a game on sale for $6 less than half its original price.she paid $88 for the jacket. What was the original price

Which is larger 7% or 0.7 why?