Question

1)Resolva as equações:

a)x + 6 =10

b) 2x=12

c)2y-4=12

d)2b-20=10

e)12a-3=a+6​

Answer 1

Resposta:

a) x+6=10

x=10-6

x=4

b) 2x=12

×=12/2

x=6

c) 2y-4=12

2y=12+4

2y=16

y=16/2

y=8

d) 2b-20=10

2b=10+20

2b=30

b=30/2

b=15

e) 12a-3=a+6

12a-a=6+3

11a=9

a=9/11

Answer 2

a) x + 6 = 10

x = 10 - 6

x = 4

b) 2x = 12

x = 12 / 2

x = 6

c) 2y - 4 = 12

2y = 12 + 4

2y = 16

y = 16 / 2

y = 8

d) 2b - 20 = 10

2b = 10 + 20

2b = 30

b = 30 / 2

b = 15

e) 12a - 3 = a + 6

12a - a = 6 + 3

11a = 9

a = $\frac{9}{11}$