You can't increase something by a negative. But if you add them it looks like this: -10+6=-4
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Let x equal the unknown number(3*x)+6 = -243x = -30x = -10
let x be the number, then: (x + 1) × 2 + 5 = x + 1 → 2x + 2 + 5 = x + 1 → 2x + 7 = x + 1 → 2x - x = 1 - 7 → x = -6 The number is -6. Checking: -6 +1 = -5; 5 × 2 = -10; -10 + 5 = -5 which is the same as -6 + 1 = -5.
Let x = the numbernumber increased by 10 = x + 10
t + 6
. N times 6 cubed