Question

a} 2x+3=7
B ) 5x-10=10
C) 9=2x-3
D) 5x+4=3x+8
E) 6x+3=18+x
F) 2x+32=-4x-4

Answer 1

Resposta:

a ) 2x+3=7

2x=7-3

2x=4

x=4/2=2

B ) 5x-10=10

5x-10=10

5x=10+10

5x=20

x=20/5=4

C) 9=2x-3

9=2x-3

9+3=2x

12=2x

2x=12

x=12/2=6

D) 5x+4=3x+8

5x-3x=8-4

2x=4

x=4/2=2

E) 6x+3=18+x

6x-x=18-3

5x=15

x=15/5=3

F) 2x+32=-4x-4

2x+4x=-4-32

6x=-36

x=-36/6=-6