Question

Qual o valor de x? a) X – 4 = 7 b) X + 8 = 10 c) X - 3 = 7 d) X + 9 = 15 e) 2X = 14 f) 4X = 24 g) 7X = 56 h) 2X + 9 = 15 i) 4X - 4 = 8 j) 6X + 7 = 3x + 15 k) 9X - 8 = 5x + 4

Answer 1

▶️ Vamos lá!!!

a) x - 4 = 7

x = 7 + 4

x = 11

b) x + 8 = 10

x = 10 - 8

x = 2

c) x - 3 = 7

x = 7 + 3

x = 10

d) x + 9 = 15

x = 15 - 9

x = 6

e) 2x = 14

x = 14/2

x = 7

f) 4x = 24

x = 24/4

x = 6

g) 7x = 56

x = 56/7

x = 8

h) 2x + 9 = 15

2x = 15 - 9

2x = 6

x = 6/2

x = 3

i) 4x - 4 = 8

4x = 8 + 4

4x = 12

x = 12/4

x = 3

j) 6x + 7 = 3x + 15

6x - 3x = 16 - 7

3x = 9

x = 9/3

x = 3

k) 9x - 8 = 5x + 4

9x - 5x = 4 + 8

4x = 12

x = 12/4

x = 3

Espero ter ajudado ☺️

Bons estudos ❤️

Att. milenatanan ❤️