Jeff solved the equation 1.2 – 0.8|3x + 1.1| = 2.3 using the steps below.

Step 1: –0.8|3x + 1.1| = 1.1
Step 2: |3x+ 1.1| = –1.375
Step 3: 3x + 1.1 = –1.375 and 3x + 1.1 = 1.375
Step 4: 3x = 2.475 and 3x = 0.275
Step 5: x = 0.825 and x = 0.0916

In which step did Jeff make his first mistake?

Question

Jeff solved the equation 1.2 – 0.8|3x + 1.1| = 2.3 using the steps below.

Step 1: –0.8|3x + 1.1| = 1.1
Step 2: |3x+ 1.1| = –1.375
Step 3: 3x + 1.1 = –1.375 and 3x + 1.1 = 1.375 
Step 4: 3x = 2.475 and 3x = 0.275 
Step 5: x = 0.825 and x = 0.0916

In which step did Jeff make his first mistake?

anonymous · Answer

@shortycme

anonymous · Answer

im not sure but i think it the third step