Question

A)2x+1=4x-7
B)9x+9+3x=15
C)16x-1=12x+3
D)3x-2=4x+9
E)17X-7X=X+18
F)5X-3+X=2X+9

preciso urgente!!!!!!!!​

Answer 1

Explicação passo-a-passo:

A)2x+1=4x-7

2x+1=4x-7

2x-4x=-7-1

-2x=-8

x=-8/-2

x=4

B)9x+9+3x=15

9x+3x+9=15

12x=15-9

12x=6

x=6/12

x=(6÷6)/(12÷6)

x=1/2

C)16x-1=12x+3

16x-1=12x+3

16x-12x=3+1

4x=4

x=4/4

x=1

D)3x-2=4x+9

3x-2=4x+9

3x-4x=9+2

-x=11

x=11/-1

x=-11

E)17X-7X=X+18

18x-7x=x+18

11x=x+18

11x-x=18

10x=18

x=(18÷2)/(10÷2)

x=9/5

F)5X-3+X=2X+9

5x-3+x=2x+9

5x+x=2x+9+3

6x=2x+12

6x-2x=12

4x=12

x=12/4

x=3

Espero ter ajudado!