The "7" is the coefficient
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None. 7x - 1 is not equal to 7x - 7.
7x = 42 Divide both sides by '7'. Hence x = 42/7 x = 6 The answer!!!!!
7x + 7 + 6x - 9 = 13x - 2
4x - 7 = 5 + 7x x = -4
7 plus 7x--2x plus 3 is: 7 + 7x + 2x + 3 = 0 9x + 10 = 0 9x = -10 x = -10/9 = -1 1/9