04-06-2018
Mathematics

contestada

slove the system of equations 3x-7y=5 and 9y=5x+5

Respuesta :

jinc0930 jinc0930

04-06-2018

3x-7y=5

9y=5x+5
-5x+9y=5

3x-7y=-5x+9y
8x=16y
x=16y/8
x=2y

3(2y)-7y=5
-1y=5
y=-5

-5(9)=5x+5
-45-5=5x
x=-10

Answer Link

Otras preguntas

What is the value of the digit 6 in the number 106,534

What map element shows the directions north, south, east and west?

Why did the Greek historian Herodotus show bias against the Persians

What is a basic requirement that a scientific hypothesis must have?

A coil of wire with 100. circular turns of radius 8.00 cm is in a uniform magnetic field along the axis of the coil. The resistance is 40.0 O. At what rate, in

Which was not a cause of the gradual decline and fall of the Western Roman Empire? the spread of Christianity economic hardships for Rome''s citizens invading b

Which defines oligarchy? a. rule by the citizens b. rule by a monarch c. rule by a small group d. rule by a congress

What number is half way between 170,000 and 180,000?

jason owes $15 for last months gas bill also. the total amount of the two gas bills is spilt evenly among the 4 roommates

What is a connotation?