Question

Consider the following system of equations.

y=-3x+6

y=3x-12

Which statement is true about the system? The graph of the system is a pair of lines

that do not intersect. The graph of the system is a pair of lines that intersect at exactly one point.

The graph of the system is a pair of lines that intersect in every point.

The system has infinitely many solutions

Answer 1

Respuesta: x = 5,x = 1

y = 1

Explicación paso a paso: 3x + y = 6

- 3x + y = -12

- 3 ( - 6 - y ) = 3 ( 12 - y )

18 + 3y = 36 - 3y

3y + 3y = 36 - 18

6y = 18

y = 18 / 6

y = 3

3x = 6 - 3

x = 3 / 3

x = 1

3(1) + 3 = 6

- 3x = -12 -3

x = -15/ -3

x = 5

5 (-3) + 3 = -15 +3 = -12