The number is -26
1st number (x-4) second number (x)
5(x-4) = 6x + 6
5x -20 = 6x + 6
5x -26 = 6x
-26 = x
Check:
5(-26 -4) = 6(-26) +6
5(-30) = -156 +6
-150 = -150
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