Question

Resolva as equações:
a) x+2·(3-2x)=35
b) x+35=-16+4x
c) 2·(x-1)+4(x-3)=-6·(x-20)
d) 2-x=35-16
e) x-4=26-17
f) 6-2x=35+x


sou muito péssima em matemática, me ajudem!

Answer 1

a) x + 2 . (3 - 2x) = 35

x + 6 - 4x = 35

6 - 35 = 4x - x

- 29 = 3x

- 29/3 = x

b) x + 35 = - 16 + 4x

35 + 16 = 4x - x

x = 17

c) 2 . (x - 1) + 4 . (x - 3) = - 6 . (x - 20)

2x - 2 + 4x - 12 = - 6x + 120

6x + 6x = 120 + 14

x = 67/6

d) 2 - x = 35 - 16

16 + 2 - 35 = x

- 17 = x

e) x - 4 = 26 - 17

x = 9 + 4

x = 13

f) 6 - 2x = 35 + x

6 - 35 = x + 2x

x = 29/3

Answer 2

Boa tarde

a) x + 2*(3 - 2x) = 35

x + 6 - 4x = 35

3x = 6 - 35

3x = -29

x = -29/3

b) x + 35 = -16 + 4x

x - 4x = -16 - 35

3x = 51

x = 17

c) 2·(x-1)+4(x-3)=-6·(x-20)

2x - 2 + 4x - 12 = -6x - 120

12x = -120 + 14

12x = -134

x = 134/12 = 67/6

d) 2-x=35-16

2 - x = 19

x = 2 - 19 = -17

e) x-4=26-17

x = 26 - 17 + 4

x = 30 - 17 = 13

f) 6-2x=35+x

2x + x = 6 - 35

3x = -29

x = -29/3