Which is a simplified form of the expression 5c – 7(2c – 4)? A. 9c + 28
B. -9c + 28
C. 9c - 28
D. -9c – 28

Which is a simplified form of the expression 3(m + 1) + 2m?
A. m + 3
B. 5m + 1
C. 3m + 1
D. 5m + 3

Analyze the solution below. 7 3 x = −2 7 3 x(3 7 ) = −2(3 7 ) x = − 6 7 what property was used to solve the equation? property of opposites division property of equality addition property of equality multiplication property of equality