Respuesta :
Good morning ☕️
Answer:
4
Step-by-step explanation:
Let’s first solve the equation:
3x + 3 =15 ⇔ 3x = 15 - 3 ⇔ 3x = 12 ⇔ x = 4
then
the equation 3x + 3 =15 has a unique solu which is 4.
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:)
Answer:
[tex]4[/tex]
Step-by-step explanation:
[tex]3x + 3 = 15 \\ 3x = 15 - 3 \\ 3x = 12 \\ \frac{3x}{3} = \frac{12}{3} \\ x = 4[/tex]
hope this helps you..!