Question

Marlena solved the equation 2x + 5 = –10 – x. Her steps are shown below.

2x + 5 = –10 – x Use the drop-down menus to justify Marlena’s work in each step of the process.

Answer 1

Explanation:

marlena steps should look like this:

2x + 5 = -10 - x

(minus 5 from both sides)

2x = -15 - x

(add x to both sides)

3x = -15

(divide by 3)

x = -5

Answer 2

step 1 addition property of equality

step 2 subtraction property of equality

step 3 division property of equality