Solving Multi-step equations

What is the first step in solving this equation:
5x + 7 = 12

• Divide by 5
• Subtract 5
• Multiply by 7
• Subtract 7

Solve for x:
6(2x + 1) = 18

• 3
• 17/12
• 1
• 2

Solve:

7x + 19 = -2x + 55

• 4
• 14.8
• 8.2
• -4

Solve:

2(2x + 3) = -6(x + 9)

• 1.2
• 6
• -6
• 7.5

• 17

• 10

• 27

• -10

Solve:

2(4x - 3) - 8 = 4 + 2x

• x = 5/3
• x = 3
• x = 1
• x = 2

8v - 4(v + 8) = 8

• 2
• 10
• 4
• -4 

Solve the equation:
4 - 6x - 2= -2(3x-1)

• no solution
• infinitely many solutions
• x = ⅓
• x = 4