Question

genteee me ajudemm pfvvvv!!!

resolva as equações de 1° grau:

a) 5×-2=8
b)3×+5=11
c)3×+6=2×-1
d)4×-4=5×-1
e)3×+8=6×-1
f)5×+4-×=2×-2+×
g)2.(×-1)=×+1
h)×/2+3=×/3+7
i)3×=1=×+7
j)10×+3.(2-×)=5.(×+2)-4



pfvv precisoo mtttttttt !!!!!!!​

Answer 1

Olá!

A )

5x - 2 = 8

5x = 8 + 2

5x = 10

x = 10/5

x = 2

B )

3x + 5 = 11

3x = 11 - 5

3x = 6

x = 6/3

x = 2

C )

3x + 6 = 2x - 1

3x - 2x = - 1 - 6

x = - 7

D )

4x - 4 = 5x - 1

4x - 5x = - 1 + 4

- x = 3 ( . - 1 )

x = - 3

E )

3x + 8 = 6x - 1

3x - 6x = - 1 - 8

- 3x = - 9

- x = - 9/3 ( . - 1 )

x = 9/3

F )

5x + 4 - x = 2x - 2 + x

5x - x - 2x - x = - 2 - 4

x = - 6

G )

2( x - 1 ) = x + 1

2x - 2 = x + 1

2x - x = 1 + 2

x = 3

H )

x/2 + 3 = x/3 + 7

mmc = 6

3x + 3 = 2x + 7

3x - 2x = 7 - 3

x = 4

I )

3x + 1 = x + 7

3x - x = 7 - 1

2x = 6

x = 6/2

x = 3

J )

10x + 3( 2 - x ) = 5(x + 2) - 4

10x + 6 - 3x = 5x + 10 - 4

10x - 3x - 5x = 10 - 4 - 6

2x = 0

x = 0

Espero ter ajudado!

Bons estudos!