Expression and Multiplication

Simplify the expression:
7(n-3)

• 7n + 21
• 7n - 21
• 7n - 7
• n - 21

Simplify the expression:
8(3v + 5)

• 24v - 40
• 32v + 40
• 24v + 40
• 24 + 40

Simplify the expression: 
12(x+y)

• 24xy
• 12x - 12y
• 12x + y
• 12x + 12y

Simplify the expression:
4(5s+4)

• 20s + 16
• 16s + 20
• 20s + 20
• 36s

Solve the equation:
4 - x = 18

• y = 14
• x = 9
• x = 14
• x = 4  

Simplify the expression:
5x - 3x

• 8x
• 2x
• -8x
• -2x

Simplify the expression:
1 + 9x + 2 + x

• 8x + 3
• 10x + 3
• 10x + 1
• 8x + 3

Simplify the expression: 
2n + 4 - 6n + 10

• 8n + 14
• 8n + 6
• 4n + 6
• -4n + 14

Simplify the expression:
4n + 7 - n

• 5n - 6
• 5n + 7
• 3n + 7
• 2n +4

Simplify the expression:
2(7 + 5y) - 2

• 12 + 10y
• 14 + 3y
• 12 - 3y
• 16 + 10y