Asked by Gabriel

Jamal uses the steps below to solve the equation 6x – 4 = 8.

Step 1: 6x – 4 + 4 = 8 + 4
Step 2: 6x + 0 = 12
Step 3: 6x = 12
Step 4: StartFraction 6 x Over 6 EndFraction = StartFraction 12 Over 6 EndFraction
Step 5: 1x = 2

Step 6: x = 2

Which property justifies Step 3 of his work?

the addition property of equality
the identity property of addition
the multiplication property of equality
the identity property of multiplication

All Answers 1

Answered by GPT-5 mini AI
The identity property of addition — because adding 0 does not change a number, 6x + 0 simplifies to 6x.