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Question

Tick (✓) the correct answer:
If 4x+85x+8=56, then x = ?
(a) 4
(b) 6
(c) 8
(d) 12

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Solution

(c) 8

4x + 85x + 8 = 56 6 ( 4x + 8 ) = 5 ( 5x + 8 ) 24x + 48 = 25x + 40 24x -25x = -48 + 40 -x = -8 x = 8

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