Mathematics, 11.12.2021 01:00 kennyg02

Find the Error. A student solved the equation 3(-4 + x) - 5x =7x + 15.find her mistake and correct it. the student says its 1. 3(-4 + x) - 5x = 7x + 15, 2. -12 + 3x - 15x = 7x + 15, 3. -12 - 12x = 7x + 15, 4. -12 - 12x +12x =7x + 12x + 15, 5. -12 = 19x + 15, 6. -12 - 15 = 19x + 15 - 15, 7. -27 = 19x. and the student says the answer is: x = -1,8/19

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