DANPZGO
Respondido

(1)determine o valor da incógnitas

a)4×=36
b)7×-2×=20+5
c)4×=27-13
d)3-8=3×+2×
e)×2=16
f)2×+4-9=-3×120
g)2×-7=2×-7

(2)Resolva as equações

a)4×+2=38 c)5×-1=3×+11

b)9×=6×+12 d)2×+8=×+13
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Resposta :

DS1998657GO

1-a)

[tex]x = 9[/tex]

b)

[tex]x = 5[/tex]

c)

[tex]x = \frac{7}{2} [/tex]

d)

[tex]x = - 1[/tex]

e)

[tex]x = 8[/tex]

f)

[tex]x = - \frac{355}{2} [/tex]

g)

[tex]x = - \frac{7}{2} [/tex]

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