Solve the following system of equations by linear combination:

2d – e = 7

d + e = 5

Question

13-01-2015
Mathematics

Answered

Welcome to Westonci.ca, your one-stop destination for finding answers to all your questions. Join our expert community now! Connect with professionals ready to provide precise answers to your questions on our comprehensive Q&A platform. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

Solve the following system of equations by linear combination:

2d – e = 7

d + e = 5

Sagot :

We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. We appreciate your time. Please come back anytime for the latest information and answers to your questions. Westonci.ca is your trusted source for answers. Visit us again to find more information on diverse topics.

Cas9 cleaves both strands of the target DNA. Which of the following could occur when cells will try to repair the damage after cleavage by Cas9? (Select all tha

Which statements are part of Darwin’s theory of evolution? Check all that apply. Organisms stay the same over time. Organisms change over time. All organisms ha

The Rule of 70 says that if one divides 70 by the percent value of growth (expressed as a whole number), the result will equal the time needed for a population

9 7 O 26 50 64 A Question 1 (1 point) Retake question Firing a piece of pottery in a kiln takes place at different temperatures for different amounts of time. T

based on the electron configuration of the elements below, which would exhibit a chemical behavior most like that of oxygen? *where the upper index is atomic ma

Dr. Guidry conducts a study examining the relationship between the number of friends one has and the experience of daily stress and life satisfaction. She rando

TRUE/FALSE. land subsidence is worsened by the cessation of groundwater pumping, because the additional water that is retained underground weakens the rock, mak

consider the interference resulting from sending coherent visible light perpendicularly through this pair of openings. calculate the angle between adjacent zone

which sentence is grammatically correct? my work plan schedule states that on february, 16 2009, i will have completed the following tasks for my annual report,

T/F in a perpetual inventory system, a purchase allowance is treated as a decrease in expenses by the company that purchased the goods.

Аноним Аноним · Answer 1 · 2015-01-13T20:13:53-05:00

If you add them straight down:

2d-e = 7
d + e = 5

Then the e's cancel out.

You are left with 3d = 12

Then solve for d by dividing each side by 3.

Now you have d =4.

To solve for e go back into one of your original equations and substitute 4 for the d.

You can use either equation, so I'll choose the second one.

4 + e = 5
Now solve for e by subtracting each side by 4.

Now you have e = 1.

So your solutions are d = 4 and e = 1

Sagot :

Other Questions