samuel741
samuel741
22-02-2017
Mathematics
contestada
need help
9x + 7y = 10
7x + 7y = 14
Respuesta :
charlottekrist
charlottekrist
22-02-2017
1. Solve for x in 9x+7y=10
X=(10-7y)/(9)
2. Substitute than into 7x+7y=14
7(10-7y)/9+7y=14
3. Solve for y in 7(10-7y)/9+7y=14
Y=4
4. Substitute y into x=(10-7y)/9
X=-2
5. The answers
X=-2
Y=4
Have a wonderful day, I hope it helped
Answer Link
VER TODAS LAS RESPUESTAS ( 61+ )
Otras preguntas
Solve for X. -x+37=178
Pls answer anything you know here ^^
Which kind of dietitian may work in a lab developing food products for a food mahufacturer? Clinical dietitian Research dietitian o Community dietitian Dietetic
What is 6231 divided by 12 into a mixed number
What is 894 rounded to the nearest ten?
i hit my sister with a glass and now she is in the hospital i feel really gultiy what should i do? it was an accendint i didnt meant to it tho
blank is established as a colony
Length of the line segment = (3,-1),(3,4)
What is the impact of the media on crime? ExplainWhat is the impact of the media on crime? Explain
the kitchen has a area of 50 square feet if the area of the kitchen is 10 square feet more 1/3 the area of the bedroom. what is the area of the bedroom?
