Question

1) RESOLVA AS EQUAÇÕES DE 1o GRAU COM UMA INCÓGNITA:

a) X – 15 = 8

b) 21x – 17 = 109

c) 73X + 100 = 53X

d) 23X - 22 = 19X + 6

e) 10 X – 40 = 150

f) 2X – 8 = 40

G) X – 2 = 8 - 4X

Answer 1

Resposta:

a) x=8+15

x=23

b)21x=109+17

21x=126

x=126/21

x=6

c) 73x-53x=-100

20x=-100

x=-100/20

x=-5

d) 23x-19x=6+22

4x=28

x=28/4

x=7

e)10x=150+40

10x=190

x=190/10

x=19

f)2x=40+8

2x=48

x=48/2

x=24

g) x+4x=8+2

5x=10

x=10/5

x=2