Question

a
2( x-1)=0

b
-3(m+2)=1

c
3x-26=x-2

d
5x-3=2x+9

Answer 1

Oi !

A )

2 ( x - 1 ) = 0

2x - 2 = 0

2x = 0 + 2

2x = 2

x = 1

S ( 1 )

b )

- 3 ( m + 2 ) = 1

- 3m - 6 = 1

- 3m = 1 + 6

- 3m = 7

m = 7 / - ( 3 )

m = - 7 / 3

S ( - 7 / 3 )

c )

3x - 26 = x - 2

3x - x = - 2 + 26

3x - x = 24

2x = 24

x = 24 / 2

x = 12

S ( 12 )

d )

5x - 3 = 2x + 9

5x - 2x = 9 + 3

5x - 2x = 12

3x = 12

x = 12 / 3

x = 4

S ( 4 )

Answer 2

Oi....

a)

2(x - 1) = 0

2x - 2 = 0

2x = 2

x =2/2

x = 1

b)

- 3(m + 2) = 1

- 3m - 6 = 1

- 3m = 1 + 6

- 3m = 7 ⇒(× por -1)

3m = - 7

m = - 7/3

c)

3x - 26 = x - 2

3x - x = - 2 + 26

2x = 24

x = 24/2

x = 12

d)

5x - 3 = 2x + 9

5x - 2x = 9 + 3

3x = 12

x = 12/3

x = 4

Espero ter ajudado