Question

aaaaayyyuuuuudddaaa x2 ecuacion exponencial

21x=21-2x+3

13x+3=169

100x+2=10

8x+1=64(-x+3)

2 5-x=1

Answer 1

solucion

21x=21-2x+3
21x+2x = 21+3
23x = 24
x= 24/23 = 1,043


13x+3=169
13x = 169-3
13x =166
x= 166/13
x = 12,76



100x+2=10
100x = 10-2
100x = 8
x = 8/100 
x = 0,08



8x+1=64(-x+3)
8x + 1 = -64x+ 192
8x+64x = 192-1
72x = 191
x = 191/72
x = 2,65



2 5-x=1
-x= 1-25
-x = -24
x = 24

saludos