Let x = the numbernumber increased by 10 = x + 10
Let x equal the unknown number(3*x)+6 = -243x = -30x = -10
01-x
Let x be the unknown number. the expression is: x + 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.
3x+30let x = "a number"(x+10) = "a number increased by 10"3(x+10) = "3 times a number increased by 10"Expand: 3x+30
Let x = the numbernumber increased by 10 = x + 10
Let x equal the unknown number(3*x)+6 = -243x = -30x = -10
01-x
Let x be the unknown number. the expression is: x + 10.
If the number is x then: 4x+10 = -2 and so the value of x is -3
x+8+x/5 = 20 x = 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.
x+>44
XXIV is the number 24 in Roman numerals. X is 10; 10 x 2 = 20 IV = 5-1 = 4 20+4 = 24
(x + y + z) / 3 = 8 x + y + z = 24 if x=10 and y=10 10 + 10 + z = 24 20 + z = 24 z = 4■
x + 12. If the unknown number is represented by x, the expression for a number increased by 12 would be x + 12.