Question

For the following system, use the second equation to make a substitution for y in the first equation.

3x + y = 2
y + 4 = 3x



3x + 3x - 4 = 2

3x + 3 - 4x = 2

3x + 3x + 4 = 2

Answer 1

3x+3x-4=2

Answer 2

x + y = 4
x - 2y = -5

If the first equation is multiplied by 2 and then the equations are added, the result is _____.



3x = 13

3x = 3

x = 3

Answer 3

3x=3

Answer 4

awesome thnx

Answer 5

Which of the systems below is equivalent to the given system?

0.01x - 0.05y = 0.1
0.4x + 0.3y = 0.9



10x - 5y = 10 and 4x + 3y = 9

x - 5y = 10 and 4x + 3y = 9

x - 5y = 1 and 4x + 3y = 9

Answer 6

the second one.

Answer 7

Given the system of equations, what is the solution?

2x + y = -1
x - y = -5



{(-8, -3)}

{(2, 7)}

{(-2, 3)}

Answer 8

#3

Answer 9

:D

Answer 10

Simplify.

6a - {b - [3a - (2b + c) + 4a - (a + 2b - c)]}.



12a - 5b

6a - b + 2c

12a - 5b + 2c

b

Answer 11

number 1) 12a-5b