Multi step equation review

Which of the following is an equivalent expression to

-3(-6x - 7) ?

• 18x - 21

• -18x - 21

• -18x + 21

• 18x + 21

Which equation has x = -5 as the solution ?

• 2x - 1 = -11

• 2x + 1 = 11

• 4x - 2 = 14

• 4x + 2 = -8

Solve the equation: -3(2x - 7) = -3

• x= -3

• x = 3

• x = -4

• x = 4

Solve for the variable k in the following equation:

7k − 1 − 6k = −6

• k = -2

• k = -3

• k = -4

• k = -5

Solve for the variable r in the following equation:

6r + 7 = 13 + 7r

• r=-6

• r=6

• r=2

• r=-2

Solve for the variable x in the following equation:

3(x-6)+2x=22

• x=8

• x=2

• x=18

• x=3

Solve for the variable t in the following equation:

2(t + 6) + 3 = 9 + 5t

• t = 16

• t = 2

• t = -8

• t = -10

Solve for the variable w in the following equation:

12 + 6w - 7w = 3w - 2w

• w = 6

• w = -16

• w = -5

• w = 4

Solve the equation:
^x/₃+ 10 = 15

• 75
• 15
• 25
• 5

 7 − 7k − 6k = −7k − 7k

• -7
• -8
• -9
• -10