Question

Equações de 1° Grau
a) x+ 4= 10
b) x+ 101= 300
c) x - 279= 237
d) x - 8= 10
e) x + 9= -1
f) 3x = 12
g) 9x = 18
h) 35x = -105
i) 7x - 1= 13
j) 6x - 10= 2x +14
k) 6x = 2x +28
l) 2x + 6= x + 18
m) 5x - 3= 2x + 9
Como fazer isso??​

Answer 1

Resposta:

Para responder, leve para o outro lado trocando o sinal, isolando o x, exemplo:

a) x + 4 = 10

x = 10 - 4

x = 6

b) x = 199

c) x = 516

d) x = 18

e) x = -10

f) x = 4

g) x = 2

h) x = -3

i) x = 2

j) x = 6

k) x = 7

l) x = 6

m) x = 4

Answer 2

Resposta:

a)x=6

b)x=199

c)x=516

d)x=18

e)x=-10

f)x=4

g)x=2

h)x=-3

i)x=2

j)x=6

k)x=7

l)x=12

m)x=4

Resolução:

a)$\sf{x+4=10}$

$\sf{x=10-4}$

$\sf{x=6}$

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b)

$\sf{x+101=300}$

$\sf{x=300-101}$

$\sf{x=199}$

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c)

$\sf{x-279=237}$

$\sf{x=237+279}$

$\sf{x=516}$

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d)

$\sf{x - 8= 10}$

$\sf{x= 10+8}$

$\sf{x= 18}$

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e)

$\sf{x + 9= -1}$

$\sf{x= -1-9}$

$\sf{x= -10}$

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f)

$\sf{3x = 12}$

$\sf{x = \frac{12}{3}}$

$\sf{x =4}$

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g)

$\sf{9x = 18}$

$\sf{x = \frac{18}{9}}$

$\sf{x =2}$

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h)

$\sf{35x = -105 }$

$\sf{x =\frac{-105 }{35}}$

$\sf{x =-3}$

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i)

$\sf{7x - 1= 13}$

$\sf{7x= 13+1}$

$\sf{7x= 14}$

$\sf{x=\frac{14}{7}}$

$\sf{x=2}$

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j)

$\sf{6x - 10= 2x +14}$

$\sf{6x-2x=14+10}$

$\sf{4x=24}$

$\sf{x=\frac{24}{4}}$

$\sf{x=6}$

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k)

$\sf{6x = 2x +28 }$

$\sf{6x- 2x =28 }$

$\sf{4x =28 }$

$\sf{x =\frac{28}{4}}$

$\sf{x =7}$

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l)

$\sf{2x + 6= x + 18 }$

$\sf{2x-x=18-6 }$

$\sf{x=12}$

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m)

$\sf{5x - 3= 2x + 9}$

$\sf{5x -2x=9+3}$

$\sf{3x=12}$

$\sf{x=\frac{12}{3}}$

$\sf{x=4}$

$\boxed{\tt{Espero~~ter~~ajudado!❦︎}}$