QUESTION IMAGE
Question
the equation $-3x + 6 = 4(-2x + 3)$ can be solved using some of the steps that are shown in the table below.
complete the table to determine which steps are correct and which steps are incorrect. select correct or incorrect for each option.
| steps | correct | incorrect |
|---|---|---|
| $-3x + 6 = -8x + 12$ | $\bigodot$ | $\bigcirc$ |
| $9 = -11x$ | $\bigcirc$ | $\bigodot$ |
| $-6 = -5x$ | $\bigcirc$ | $\bigodot$ |
Step1: Check first step
Original RHS: $4(-2x + 3) = -8x + 12$. First step RHS is $-8x + 3$ (wrong multiplication).
Step2: Check second step
Second step RHS is $-8x + 12$ (correct distribution).
Step3: Check third step
From correct second step: $-3x + 6 = -8x + 12$. Add $8x$: $5x + 6 = 12$. Subtract 6: $5x = 6$. Third step is wrong.
Step4: Check fourth step
From correct second step: $-3x + 6 = -8x + 12$. Subtract $6$: $-3x = -8x + 6$. Subtract $-8x$: $5x = 6$ → $-6 = -5x$ (equivalent, correct).
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- $-3x + 6 = -8x + 3$: Incorrect
- $-3x + 6 = -8x + 12$: Correct
- $9 = -11x$: Incorrect
- $-6 = -5x$: Correct