0757905
0757905
29-04-2021
Mathematics
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Respuesta :
yukalanilogoai
yukalanilogoai
29-04-2021
Answer: x = 20
Explanation:
X + 3x + 10 = 90
4x+10=90
-10. -10
4x 80
4. 4
X=20
Step by step:
1. Add
2. Opposite operation +/-
3.Divide
4. Get your answer
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