21-12-2019
Mathematics

contestada

Solve for x, y and z
3x – 3y + 5z = 13
5x + 6y – 2z = 10
7x + 5y = 18

Respuesta :

Xephyra246 Xephyra246

21-12-2019

Answer:

3x – 3y + 5z = 13

x = 13/3 + y - 5z/3

y = - 13/3 + x + 5z/3

z = 13/5 - 3x/5 + 3y/5

5x + 6y – 2z = 10

x = 2 - 6y/5 + 2z/5

y = 5/3 - 5x/6 + z/3

z = -5 + 5x/2 + 3y

7x + 5y = 18

x = 18/7 - 5y/7

y = 18/5 - 7x/5

Answer Link

Otras preguntas

18. In South Africa's first elections open to voters of all races, which leader was elected president?

10 POINTS AND BRAINLIEST! I NEED HELP ASAP! Complete the function table, then write a rule for the function.

Find the measure of arc BC. PLEASE HELP!!

What were two immediate effects of the attack on Pearl Harbor?

What is the unemployment rate in the United States

Please help I'm very confused

Which island or island group has the greatest number of natural resources in Oceania? A)Solomon Islands B)Papua New Guinea C) Cook Islands D) Guam

Madame Pickney has a rather extensive art collection and the overall value of her collection has been increasing each year. Three years ago, her collection was

Which tribes typically lived in small farming communities?

What fraction OF the float were form either a dance group or a radio station? Written in simplest form