What belongs in the box marked with the question mark in the proof?

1 answer:

6 0

Given: 3x - 4 = 2(x + 8), Prove: x = 20
1. 3x - 4 = 2(x + 8) | 1. ___Given___________
2. 3x - 4 = 2x + 16 | 2.___Distributive property___________
3. 3x = 2x + 20 | 3. ___addition property of equality_____________
4. x = 20 | 4. ___subtraction property of equality_____________

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