Mastering Algebra

Solve for x: 2x + 3 = 11

• 3

• 5

• 2

• 4

Combine like terms: 4x + 2x - 5 = 7

• x = 2

• x = 0

• x = 3

• x = 1

Isolate the variable: 3(x - 4) = 9

• x = 4

• x = 7

• x = 9

• x = 5

Evaluate the expression: 5x + 2 when x = 3

• 17

• 20

• 12

• 10

Check the solution: Is x = 2 a solution for 3x - 6 = 0?

• Yes, x = 2 is a solution.

• x = 2 makes the equation true.

• x = 2 is an extraneous solution.

• No, x = 2 is not a solution.

Solve for x: 5x - 7 = 18

• 10

• 5

• 4

• 6

Combine like terms: 7y + 3y + 4 = 20

• y = 0.8

• y = 1.6

• y = 2.4

• y = 3.2

Isolate the variable: 2(x + 5) = 16

• x = 3

• x = 5

• x = 1

• x = 8

Evaluate the expression: 4x - 1 when x = 2

• 10

• 7

• 8

• 5

Check the solution: Is x = 3 a solution for 2x + 4 = 10?

• No, x = 3 is not a solution for 2x + 4 = 10.

• Yes, x = 3 makes the equation 2x + 4 = 12.

• Yes, x = 3 is a solution for 2x + 4 = 10.

• No, x = 3 is a solution for 2x + 4 = 8.