Question

1. Resolva as equações:

a)2x – 4= 0
b) 10x−8=5x+2
c)x/3+4=5
d) 7x−1=8x+5​

Answer 1

Resposta:

a)2x – 4= 0

2x=4

x=4/2

x=2

b) 10x−8=5x+2

10x-5x=2+8

5x=10

x=10/5

x=2

c)x/3+4=5

x/3=5-4

x/3=1

x=3.1

x=3

d) 7x−1=8x+5

7x-8x=5+1

-x=6

-6=x