Byuwtipolkyle Byuwtipolkyle

22-01-2017
Mathematics

contestada

Solving system of equation using substitution?

-3x - 8y = 20
-5x + y = 19

Respuesta :

sciencific sciencific

22-01-2017

multiple second equation by 8
-3x-8y=20
-40x+8y=152
sum 2 equations:
-43x+0=172
x=172/-43
x=-4
put x in one of the equations

-3×-4-8y=20
12-8y=20
-8y=20-12
-8y=8
y=-1

Answer Link

Otras preguntas

Can anyone please tell me what 2:26 CT is in missouri time. Ive always been bad with time zones and just time in general.

(x²+5x-2)÷(x+5)find the remainder

safety measures to be taken during technical drawing

What evidence from the text shows that Justinian's law reforms were successful?

How many kilocalories does a runner expend when he runs for 5.0 h and uses 830 Cal/h? How many pieces of pizza that each contain 19 g of protein, 16 g of fat, a

find protons neutrons and electrons of 60Co+3

HELP ASAP PLEASE?!!!!! what are some of the characteristics of our (Augusta) cultural landscape?

can someone help me please i don’t understand

Number 8. Please help

what are 3 elements of a speech or sermon that are necessary to categorize it as jeremiad ? explain what jeremiad means and describe how is still used today.