Jen needs more than $120 to go camping. She has already saved $30. Which number line best represents the possible amounts of money Jen would need to save to go camping? A. image B. image C. image D. image

1. use commutative property to reorder the terms.2x+81=0.2. move the constant to right side by adding its opposite on both sides. 2x+81-81=0-81.2x=(-81).3. divide the equation on both sides.2x ÷ 2 = 81 ÷ 2.x = -81/2. your answer is -81/2. if you need to simplify it into a decimal, it’s -40.5.