Solving Equations check up

Solve for y: 
2y + 7 = 11

• y = 2
• y = 1
• y = 9
• y = 4

10x + 9 = 4x - 9

• x = 0

• x = 3

• x = -3

• x = -18

Solve for x:
4(1-x)+3x=-2(x+1)

• x = -6
• x = 6
• x = 3

Solve the equation
12x - 15 = 3(2x+3)

• x = 4
• x = -4
• x = 2
• x = -2

• Infinitely Many Solutions

• No Solution