1. Solve equation 6x+ 1=-4, and the correct shift term is ().

A.6x = 4- 1 b .-6x =-4- 1 c . 6x = 1+4d . 6x =-4- 1

2. Solve the equation -3x+5=2x- 1, and the shift term is correct ().

a . 3x-2x =- 1+5 b .-3x-2x = 5- 1 c . 3x-2x =- 1-5d .-3x-2x =- 1-5

3. The following equation deformation is correct ()

A. from -2x = 6, x=3.

B.from-3 = x+2，x =-3-2。

C from-7x+3 = x-3，(-7+ 1) x =-3-3。

D x =- 1 from 5x = 2x+3.

4. It is known that when x = 2 and y = 1, the value of the algebraic expression KX-Y is 3, so the value of k is ().

A.2 B.-2 C. 1 D.- 1

Second, fill in the blanks

5. The solution of equation x+3=5 is.