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I WILL GIVE BRAINLIEST Solve: 2(2x + 9) = 5x + 72

Step 1: 4x + 18 = 5x + 72
Step 2: 9x + 18 = 72
Step 3: 9x = 54
Step 4: x = 6

Which is the first incorrect step in the solution shown above?

Step 1
Step 2
Step 3
Step 4

Respuesta :

bveazey

Answer:

The first incorrect step would be the second, I think.

Step-by-step explanation:

You need to distribute:

2(2x+9) = 5x + 72

4x + 18 = 72

Then subtract 18 from both sides of the equation. Step 2 dosnt do this.

Next you simplify and get: 4x = 5x + 54

Subtract 5 from both sides of equation

Finally simplify and you get: -x = 54

manissaha129

Answer:

Solve: 2(2x + 9) = 5x + 72

  • Incorrect :---

Step 1: 4x + 18 = 5x + 72

Step 2: 9x + 18 = 72

Step 3: 9x = 54

Step 4: x = 6

  • Correct :---

Step 1: 4x + 18 = 5x + 72

Step 2: x + 72 = 18

Step 3: x = 18-72

Step 4: x = -54

Which is the first incorrect step in the solution shown above?

  1. Step 1
  2. Step 2✓
  3. Step 3
  4. Step 4

→First incorrect step in the solution shown above is Step 2.

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