3 years ago

O triplo de um número, menos 10 é igual ao próprio número mais 70. Qual é esse número?

2 answers:

marin [14]3 years ago

8 0

Answer: 40

Step-by-step explanation:

3x-10=x+70

3x-x=70+10

2x=80

x=8<u>0</u>

x=40

stich3 [128]3 years ago

5 0

Answer:

Step-by-step explanation:

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