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

do staar test change questions every year?

state four conditions necessary for establishing a weather station

PLEASE HELP! I just need three similes for the three sentences! 1. Joey usually looked like a _________ while I peeled the coats and jackets off her. 2. Finall

Did anyone read this?

What volume would 74.87g of CO2 occupy at STP

Thomas Jefferson did not believe in slavery, therefore chose not to own them O True O False

During a school fund-raiser, the Student Government Association tracked the average donation by student. Which of the following can you conclude about the fund-

How do you think Charles Halperin would answer our question: Were the Mongols barbaric or "uniquely" civilized?

I need help finding the right answer

How does Robert Cormier present the character of Nicole Renard in Heroes?(Essay Question)