-5x + 4x = -6
Combining like terms: -x = -6
Multiplying by -1 (or switching signs): x = 6
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4x - 10 + 5x = 719x = 81x = 9
5x+12 = 4x-88 x = -100
5x - 18 = 4x + 7Add 18 to each side:5x = 4x + 25Subtract 4x from each side:x = 25
5x + 3 = 4xSubtract 3 from each side:5x = 4x - 3Subtract 4x from each side:x = -3
4x + 5 = 3x + 84x-3x + 5 - 5 = 3x - 3x + 8 -5x = 3