Question

6. Select all the equations that are equivalent to the equation 3x - 4 = 5.A. 3x = 9B. 3x - 4 + 4 = 5 + 4C. X-4 = 2D. x = 9E. -45-33

Answer 1

The given equation is

`3x-4=5`

Adding 4 on both sides, we get

`3x-4+4=5+4`

The given equation is equivalent to option B

Consider

`3x-4+4=5+4`

Solve

`3x=9`

The given equation is equivalent to option A

Consider

`3x=9`

Dividing by 3 , we get

`(3x)/(3)=(9)/(3)`
`x=3`

The given equation is not equivalent to option D.

Options C and E are also not equivalent to the given equation.

Hence the correct options are A and B.