Question

Encontre o valor do ×: (equação)
×+8+28=47
9×=6×+12
5×-1=3×+11
2×+8=×+13

Answer 1

×+8+28=47

x = 47-8-28

x = 47-36

x = 11

9×=6×+12

9x-6x = 12

3x = 12

x = 12/3

x = 4

5×-1=3×+11

5x-3x = 11+1

2x = 12

x = 12/2

x = 6

2×+8=×+13

2x-x = 13-8

x = 5

✨ Espero ter ajudado ✨

19/11/21

Answer 2

Resposta:

a) x + 8 + 28 = 47

x = 47 - 20

x = 27

b) 9x = 6x + 12

9x - 6x = 12

3x = 12

x = 12 ÷ 3 =4

c) 5x - 1 = 3x + 11

5x - 3x = 11 + 1

2x = 12

x = 12÷÷÷2 = 6

d) 2x + 8 = x + 13

2x - x = 13 - 8

x = 5