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 was a strength for the British during the American Revolution? a. the size of their military b. their ability to acquire supplies c. fighting a war abro

21,326,438.86 expandedform

How many different ways can you make 18 cents using dimes, nickels, or pennies? A. 8 B. 6 C. 5 D. 4

As a testament to how bad smoking is, _____ of current smokers would like to quit. A. 90% B. 85% C. 70% D. 60%

Estimates 63824+29452

what times what equals 36

What is 3 divided by 927

If -2(3y+5)=-4, find the value of 5y

At 3:30 P.M. the angle between the hands of a clock is

To the nearest thousand , the population of Texas was estimated to be 24,327,000 in 2008 . describe the actual population that Texas could have had in 2008 .