trangtran202 trangtran202

03-10-2017
Mathematics

contestada

How do you know that substitution gives the answer to a system of equations?

Respuesta :

whosmarlene whosmarlene

03-10-2017

You put in the answers you got for your variables into one of the equations. If it gives you the correct answer then you solved it, if it's different then either it doesn't work or one of the steps wasn't completed correctly or at all.

Answer Link

Otras preguntas

Why did Osama Bin Laden and Al-Qaeda plan and execute the September 11th, 2001 attacks on the U.S.

Show that the set of all elements of the form (x²y, x³z, 2xy - z), where x, y, z ∈ ℝ, is a subspace of ℝ³.

If an internet service can download a 2GB file in 50seconds Find the internet speed in MBps

who was the resident of usa in1983

What are behaviors that make up good public speaking?

How many one PGAL need ATP and NADPH

At a store, 2 gallons of milk cost $6. What is the value of the ratio of dollars to gallons of milk?A) Clear checkB) $0.33 per gallonC) $3 per gallonD) $4 per g

please help me answer this

please answer the two questions

How much does it cost to rent a business place for landscaping in Phoenix,Arizona?