Question

Observe os exemplos e resolva as equações.

5x -4 = 8+2x

5x-2x = 8+4

3x = 12

X= 12 =4

5. (2x +3) = 24 + x

10x + 15 = 24 - 15

10x -x = 24 -15

9x = 9

9-9

=

a)x + 9= 18

b) x-1= -8

c) 3y - 8 =13

d) 12x - 10= 5x + 11

e) 7x + 5= 68 -2x

f)14-3x = 2x + 2​

Answer 1

Resposta:

a) ×+4=18

x=18+9

x=27

b) x-1=-8

x=-8+1

x=-7

c) 3y=13+8

3y=21

y=21/3

y=7

d) 12x-5x=11-10

7x=+1

x=7/1

x=7

e) 7x-2x=68-5

5x=64

x=64/5

x= 12

f) 14-3x = 2x + 2

3x-2x=-14+2

1x= 12

x=12/1

x=12