Seudónimo Seudónimo
  • 24-02-2017
  • Mathematics
contestada

HELP!!!!!!!!!!!!!!!!!!!!

HELP class=

Respuesta :

baabaagreysheep
baabaagreysheep baabaagreysheep
  • 24-02-2017
8x - 4y = -32
-3x + 4y = 42
(add)
5x = 10
÷ 5
x = 2

(-3 × 2) + 4y = 42
-6 + 4y = 42
+ 6
4y = 48
÷ 4
y = 12

So x = 2 and y = 12, or (2, 12)
I hope this helps!
Answer Link
Аноним Аноним
  • 24-02-2017
8x - 4y = -32
-3x + 4y = 42
---------------------add
5x = 10
x = 2

8x - 4y = -32
8(2) - 4y = -32
16 - 4y = -32
-4y = -32 - 16
-4y = -48
y = 12

answer (2,12)

Answer Link

Otras preguntas

what transformed US politics in the 1920s
what makes things work?
Factorise the following equation: [tex]6x^4y^3-10x^3y^4[/tex]
8. Find the midpoint of the base XY in AXYZ.
please help, urgent​
Please help me jog my memory in how to solve a system of equations with the example below 2x + y=4x - y=-1​
-11(13 + v) =-121 hey do yall know the answe if so can yall show the work​
when the government sets an effective price floor
The United States is a major producer of what element? mercury diamonds copper aluminum
The work will be completed by Sohan in a fortnight passive to active voice