babycakes201220150 babycakes201220150

03-10-2021
Mathematics

contestada

3x -4y= -20 -x +2y =10 whats the value of y

Respuesta :

soccerfan54 soccerfan54

03-10-2021

3x-4y=10
-20-x+2y=10 then -30+2y=x now plug this in the other equation:
3(-30+2y)-4y=10
-90+6y-4y=10
2y=100
y=50

Answer Link

Otras preguntas

What’s the answer to this please

How many sentences are in 1 whole paragraph?

Caring for others and about things beyond yourself is a way to transcend your own life. Having empathy for others is also known as... Koroshi Compassion Gratitu

Geoffrey's school was doing a fundraiser. Students could win prizes for raising different levels of money. After the fundraiser was over, Geoffrey's teacher as

Chloroplasts contain stacks of sac like membranes called thylakoid___. These are arranged into stacks called _______________________. The fluid around this is

Which is a consequence of being bullied

Please help me:) Which of the following statements is true? Mars' moons may be captured comets. Comets have circular orbits around the sun. Chunks of rock that

On eBay, the Internet auction website, sellers design the web page on which they sell their merchandise. One individual who was selling a Coca-Cola tray from th

What is the probability of spinning an odd number?

1.The cell wall of a fungi is made of what? A-cellulose B-chitin C-cytoplasm