Question

RESOLVA AS EQUAÇÕES DO 1° GRAU A SEGUIR :
a x + 10 = 30

b x - 15 = 60

c x + 30 = 80

d x - 45 = 100

e 4.x = 160

f 10.x = 800

g x / 8 = 30

i x / 10 = 12

h x / 3 = 15

j x/ 12 = 50​

Answer 1

Explicação passo-a-passo:

a= x+10=30

x=30-10

x=20

b= x-15=60

x=60+15

x=75

c= x+30=80

x=80-30

x=50

d= x-45=100

x=145

e= 4x=160

x=160/4

x=40

f= 10x=800

x=800/10

x=80

g= x/8=30

x=30.8

x=270

h= x/3=15

x=15.3

x=45

i= x/10=12

x=12.10

x=120

j= x/12=50

x=50.12

x=600