Question

1) 8X - 10 = 6X + 6
2) 2X - 25 = 300 - 60
3) 7X + 18 2X = 180
4) X + 100 + X + 90 + X +10 = 360
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Answer 1

Resposta:

mano do céu que pergunta difícil

Answer 2

Resposta:

1)

8x-6x= +6+10=

2x=16

x=16/2

x=8

2)

2x-25=300-60

2x-25=240

2x=240+25

2x=255

x=

$\frac{255}{2}$

3)

7x+18×2x=180

7x+36x=180

43x=180

x=

$\frac{180}{43}$

4)

x+100+x+90+x+10=360

3x+200=360

3x=360-200

3x=160

x=

$\frac{160}{3}$

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Espero ter ajudado :D.