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5x + 21x + 14 = 24x + 6
26x + 14 = 24x + 6
26x + 14 - 24 x = 24 x +6 - 24x (kedua ruas -24x)
2x + 14 = 6
2x + 14 - 14 = 6 - 14 (kedua ruas -14)
2x = -8
2x : 2 = -8 : 2 (kedua ruas : 8)
x = -4