Question

calcule as seguintes equações: ​

Answer 1

Resposta:

a) 2x + 12 = 26; 2x = 26 - 12; 2x = 14; x = 14/2 = 7

b)8x - 12 = 6x + 16; 8x - 6x = 16 + 12; 2x = 28; x = 14

c) 4(x + 12) = 2x + 48; 4x + 48 = 2x + 48; 4x - 2x = 48 - 48; 2x = 0; x = 0

d) (x/6) + (4/5) = x + 3/5; (x/6) - x = 3/5 - 4/5; x - x/6 = 1/5; 5x/6 = 1/5; x = 6/25

Answer 2

Resposta:

a)

2x=26-12

2x=14

x=7

b)

8x-6x=16+12

2x=28

x=14

c)

4x+48=2x+48

4x=48-48

4x=0

x=0

d)

x/6+4/5=x+3/5

x-x/6=4/5-3/5

6x/6-x/6=1/5

5x/6=1/5

x=6/25