Question

DETERMINE A SOLUÇÃO DESTAS EQUAÇÃO ?

11) 3x-2=5
12)5x-1=6
13)5x+35=2x
14) 5x+35-2x=23

Answer 1

Olá,

Vamos lá,

11) 3x-2=5
3x = 5 + 2
3x = 7
x = 7/3

12)5x-1=6
5x = 6 + 1
5x = 7
x = 7/5

13)5x+35=2x
5x - 2x = -35
3x = -35
x = -35/3


14) 5x+35-2x=23
3x = 23 - 35
3x = -12
x = -12/3
x = -4

Answer 2

Olá,

11)

3x-2 = 5
3x = 5+2
3x = 7
3x/3 = 7/3
x = 7/3

12)

5x-1 = 6
5x = 6+1
5x = 7
5x/5 = 7/5
x = 7/5

13)

5x+35 = 2x
5x-2x = -35
3x = -35
3x/3 = -35/3
x = -35/3

14)

5x+35-2x = 23
3x+35 = 23
3x = 23-35
3x = -12
x = -12/3
x = -4