Determining Equivalent Expressions

Which of the following expressions is equivalent to 1/3(15x + 24)?

• -5x - 8

• 5x - 8

• 5x + 8

• -5x + 8

Which of the following expressions is equivalent to 2(7p + 5) - 3p + 10?

• 14p+10

• 14p-3p+10

• 17p+20

• 11p+20

Which expression is equivalent to r+r+r-5+r+20?

• r⁴+25

• r⁴+15

• 4r+25

• 4r+15

Which expression is equivalent to -(8y + 5y + 4 - 12)?

• -13y + 8

• 13y - 8

• 3y + 16

• -3y - 16

Which expression is equivalent to 0.5(18b + 6 + 20c - 30) -2b - 3c?

• 9b + 3 + 10c -15

• 7b - 7c +12

• 7b - 7c - 12

• 9b + 3 + 10c - 15 + 5c