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What belongs in the box marked with the question mark in the proof?Given: 3x - 4 = 2(x + 8), Prove:...
4 months ago
Q:
What belongs in the box marked with the question mark in the proof?Given: 3x - 4 = 2(x + 8), Prove: x = 20StatementReason(1) 3x - 4 = 2(x + 8)(2) 3x - 4 = 2x + 16(3) 3x = 2x + 20 (?)(4) x = 20
Accepted Solution
A:
(1) 3x - 4 = 2(x + 8) ..............Given
(2) 3x - 4 = 2x + 16...............Distributive property
(3) 3x = 2x + 20-----------------Addition property of equality
(4) x = 20-------------------------Subtraction property of equality