Mathematics, 09.03.2021 01:40, xxkeyxx51

Which step could you use to start solving the system of equations below? x + y = 3
-3x - 2y = -7

Group of answer choices
A. Multiply -3x - 2y = -7 by 2 and subtract it from x + y = 3

B. All of the above.

C. Multiply x + y = 3 by 3 and add it to -3x - 2y = -7

D. Add x + y = 3 to -3x - 2y = -7

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:00, samantha9430

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

Answers: 1

continue

Mathematics, 21.06.2019 19:10, smarty5187

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

Answers: 1

continue

Mathematics, 21.06.2019 19:30, bree480

Aline passes through 3,7 and 6,9 what equation represents the line

Answers: 2

continue

Mathematics, 21.06.2019 20:00, rogelionavarro200314

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

Answers: 2

continue

Do you know the correct answer?

Which step could you use to start solving the system of equations below? x + y = 3
-3x - 2y =...