DUM10122 Prior Knowledge 1.1

Simplify the expression: x+3x

Expand

5x(5x)

Simplify the expression: 5x - 2 + 3x - 7

• 8x - 9

• 2x - 5

• 7x - 9

• 8x - 5

Simplify: 2x + 3(4 -x)

• 5 + 3x

• 5x + 12

• 12 - x

• 12 - 12x

Simplify the expression: 3(2x + 4) - 2(3x - 1)

• 10x + 2

• 6x + 2

• 12x + 2

• 14

Solve for x: 2x + 5 = 11

• x = 2

• x = 6

• x = 3

• x = 4

Solve for x: 2(3x + 1) = 5x - 3

• x = 2

• x = 3

• x = 1

• x = 4

Solve for x: 2x + 5 = 4(x - 3)

• x = 8.5

• x = 6.5

• x = 10

• x = -2

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

• x = 0

• x = -11

• x = -7

• x = 5