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lawyer [7]
2 years ago
8

Steps to solve an equation are shown below. Which properly justifies step 4? Given: 2x + 9 = 4x + 15

Mathematics
1 answer:
Oksanka [162]2 years ago
8 0

Answer:

The answer is

→ <u><em>No property</em></u>

Step-by-step explanation:

Given equation: 2x + 9 = 4x + 15

What were supposed to do: Which properly justifies step 4.

Solve:

2x + 9 = 4x + 15

Step 1: We must subtract 4x on both sides.

2x+9-4x=4x+15-4x

= -2x+9=15

Step 2: We must subtract 9 on both sides.

-2x+9-9=15-9

= -2x=6

Step 3: We must divide both sides by -2.

\frac{-2}{2} = \frac{6}{-2}

= x = -3

Result:

x=-3

There is no Step 4.

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