13 times an unknown number added 72 equals -23 times the unknown number

X=2

Step-by-step explanation:

Let the unknown number be x

13*x+72=-23*x

13x+72=-23x(collect like terms and add -72 to both sides)

13x+72-72=-23x-72=13x=-23x-72(collect like terms again and add +23x to both sides)

13x+23x=-23x-72+23x=36x=-72

36x=-72(divide both sides by the coefficient of x;36 on both sides)

36x/36=-72/36

X=2.

55

step-by-step explanation:

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

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