Respuesta :

ZJSG09112007

x = 7

Step-by-step explanation:

Let the unknown number be x

[tex]3 \times x + 3 = 24 \\ 3x + 3 = 24[/tex]

Collect like terms and simplify

[tex]3x = 24 - 3 \\ 3x = 21[/tex]

Divide both sides of the equation by 3

[tex] \frac{3x}{3} = \frac{21}{3} [/tex]

Simplify

[tex]x = 7[/tex]

TheBlueFox

Let's call the number we don't know n.

Since three times a number plus 3 is 24,

we can translate this to 3n + 3 = 24.

Solving from here, we subtract 3 from both sides to get 3n = 21.

Now we can divide both sides of the equation by 3 and we have n = 7.

So our number is 7.

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