Question

X + 12 = 3X
x+16=3X
X+(X+1)+(X+2)=24
2X+5=3X-1
necesito resolver esas ecuaciónes alguien q me pueda ayudar ​

Answer 1

Respuesta:

$x + 12 = 3 x\\\\x - 3 x = - 12\\\\- 2 x = - 12\\\\x = \frac{-12}{-2}\\\\x = 6$

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$x + 16 = 3 x\\\\x - 3 x = - 16\\\\- 2 x = - 16\\\\x = \frac{-16}{-2}\\\\x = 8$

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$x + ( x + 1 ) + ( x + 2 ) = 24\\\\x + x + 1 + x + 2 = 24\\\\3 x + 3 = 24\\\\3 x = 24 - 3\\\\3 x = 21\\\\x = \frac{21}{3}\\\\x = 7$

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$2 x + 5 = 3 x - 1\\\\2 x - 3 x = - 1 - 5\\\\- x = - 6\\\\( - 1 ) - x = - 6\\\\x = 6$

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Espero haberte ayudado! Saludos!