Mathematics, 20.02.2020 08:58 sierravick123owr441

Consider the system.
6x − 3y = 42
x + 3y = −21

Part 1 out of 2
Complete the description for three different substitution methods that can be used to solve this system.

Solve the second equation for x (x =
-21
− 3y) and then substitute the value into the first equation.
Solve the first equation for y (y = 2x −
-14
) and then substitute that value into the second equation.
Solve either equation for 3y (3y =
− x or 3y = 6x −
) and then substitute that value into the other equation.

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 13:30, calebnlocke

What is the vertical asymptotes of the function f(x)=x-2/x*2-3x-4

Answers: 1

continue

Mathematics, 21.06.2019 14:30, logan541972

Factor. 8x2y2 – 4x2y – 12xy 4(8x2y2 – x – 12xy) 4(2xy – 4x2y – 12xy) 4x2y2(2xy – xy –3) 4xy(2xy – x – 3)

Answers: 2

continue

Mathematics, 21.06.2019 17:00, Calvinailove13

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

Answers: 3

continue

Mathematics, 21.06.2019 17:30, ooorozco

Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.

Answers: 1

continue

You know the right answer?

Consider the system.
6x − 3y = 42
x + 3y = −21

Part 1 out of 2
Complet...