Question

What is the answer ???

Answer 1

Answer: second equation

Answer 2

Answer:

B

Step-by-step explanation:

a)

2x + x + 5x -9 = -6 + 9x - x + 3

8x - 9 = 8x -3

8x - 8x = -3+9

0

Has no solution.

b)

10x -6x -4-1 = 7-12+2x+2x

    4x - 5 = 4x - 5

      0 = 0

therefore has infinite solutions.

c)

7x + 5 + 4 - 9x = x + 2 - 4 +8x

-2x + 9 = 9x -2

-11x = -11

x = 1

Soluble and has a solution.

d)

5x - 2x - 3 -9 = x -12 + 3x + 3x

3x -12 = 7x -12

-4x = 0

x = 0

Has a solution.