Mastering Algebra and Linear Equations

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

• 3x + 2

• 5x - 2

• 8x + 2

• 8x - 2

Evaluate the expression: 4a + 3 when a = 2.

• 14

• 11

• 9

• 7

Solve the equation: 2x + 3 = 11.

• 5

• 4

• 3

• 2

Identify the coefficient in the expression: 7y - 4.

• -4

• 7y

• 0

• 7

Write an equation for: The sum of a number and 5 is 12.

• 5 + x = 12

• 12 - x = 5

• x - 5 = 12

• x + 5 = 12

Simplify: 5(2x + 3) - 4x.

• 5x + 15

• 10x + 3

• 6x + 15

• 6x + 12

Evaluate: 6m - 2 when m = 3.

• 18

• 14

• 12

• 16

Solve for x: 5x - 7 = 3.

• 3

• 1

• 4

• 2

What is the constant in the expression: 9x + 6?

• 9

• 6

• 15

• x

Write an equation for: Three times a number is 15.

• 3x + 5 = 15

• 15 = 3 + x

• 3x = 15

• x = 15