Question

c) 5x + 90 = 0
d) 20x -400 = 0
e) -14x + 112 = 0
f) -1x -17 = 0
g) 4x + 40 = 0
h) 15x -195 = 0
i) 10x + 10 = 0
j) 20x + 60 = 0​

Answer 1

Resposta:

c) 5x= –90

x=–90/5

x= –18

d) 20x = 400

x= 400/20

x=20

e) –14x = 112

x = 112/14

x= 8

f) –1x = 17

x=17/–1

x= –17

g) 4x = –40

x= –40/4

x= –10

h) 15x= 195

x= 195/15

x= 13

i) 10x= -10

x= –10/10

x= –1

j) 20x= –60

x= –60/20

x= –3