Question

2) Indique o valor de x de cada equação
a) x = 12 = 20
b)x+ 4 = 12

c) 4x + 2 = 16
d) 18x - 43 = 65
e) 2x +6 = x + 18​

Answer 1

a)x=12=20

x=20+12

x=32

b)x+4=12

x=12-4

x=8

c)4x+2=16

4x=16-2

4x=14

x=14/4

d)18x-43=65

18x=65+43

18x=108

x=108÷18

x=6

e)2x+6=x+18

2x-x=18-6

x=12