Question

A) X+7=25 B) X-10=5 C) 7.X=56 d) 3.X=12 E) 2.X+3=13 F) 5.X+4=10 G) 3.X-1=8 H) 7.X-5=2

Answer 1

Resposta:

a) 18

b) 15

c) 8

d) 4

e) 5

f)6/5

g) 3

h) 1

Explicação passo-a-passo:

a) x+7 = 25

x = 25-7

x= 18

b) x-10 = 5

x = 5+10

x = 15

c) 7.x = 56

x = 56/7

x = 8

d) 3.x = 12

x = 12/3

x = 4

e) 2.x + 3 = 13

2x = 13 -3

2x = 10

x = 10/2

x = 5

f)5.x + 4 = 10

5x = 10-4

5x = 6

x = 6/5

g) 3x - 1 = 8

3x = 8+1

3x = 9

x = 9/3

x = 3

f) 7.x -5 = 2

7x = 2 +5

7x = 7

x = 7/7

x = 1