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 state at which a net force is zero called

The traits of populations in the forest ecosystem have changed over time. What caused the traits to change?

What what handels full name

Veronica earned $150 at work this past week in her paycheck. She wants to buy some necklaces which costs $6 each. She writes a function to model the amount of m

her investment grew 22% to$610 how much did she invest____ ( solve as an equation or fraction)

write the equation in function form then graph the equation 3x-y=5

in a geometric series t1=23,t3=92 and the sum of all of the terms of the series is 62813. How many terms are in the series

What area of the long bone is covered with cartilage

write the equation in function form then graph the equation 3x-y=5

n^2+7n+15=5 show work please