Alicia is solving the equation shown. − 2( x + 1) + 10 = 4 − 2x

She wrote this as her first step.

x + 1 − 5 = − 2 + x

Which property justifies this first step?

A. additive identity property
B. addition property of equality
C. multiplicative property of zero
D. multiplication property of equality

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

Five dinosaurs go for a walk and come across some lovely chicken wings. their names are rexy, bronto, steggy, paly, and terry. there are exactly 5 dozen wings(equal enough for each dino to have a dozen right? ); however, terry is on a diet and he only eats 6 wings. if paly eats 2 more than terry, steggy eats 4 more than paly, and bronto and rexy eat the same amount because they are really hungry from not eating all day, how many chicken wings did each dino eat?