solve this equation 5x-7=2x+8 and find L.H.S
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given :- 5x - 7 = 2x + 8
⏩ 5x - 2x = 8 + 7
⏩ 3x = 15
⏩ x = 15/3
⏩ x = 5
therefore L.H.S = 5x - 7 = (5 × 5) - 7 = 25 - 7 = 18
given :- 5x - 7 = 2x + 8
⏩ 5x - 2x = 8 + 7
⏩ 3x = 15
⏩ x = 15/3
⏩ x = 5
therefore L.H.S = 5x - 7 = (5 × 5) - 7 = 25 - 7 = 18
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