U1L6 Group WU

Simplify the expression

-y - 6 - 3y - y

• -5y + 6

• -5y - 6

• 5y + 6

• 5y - 6

Simplify the expression

x - 3y + 2x + 4

• 3x + 3y + 4

• 3x - 3y - 4

• 3x - 3y + 4

• -3x - 3y - 4

Simplify the expression

52x - 52x - 6 - 6

Simplify the expression

7a²b + 8ab² - 9a²b

• -2a²b + 8ab²

• 2a²b + 8ab²

• -2a²b - 8ab²

• 2a²b + 8ab²

The sides of a triangle are 3x + 2, 6x - 1, and 7 - x.

Express the perimeter of the triangle in terms of x.

• 8x - 8

• 18x - 14

• 18x +8

• 8x + 8