Question

Rozwiąż równania.

a) x/2 + x/2 + 1 = 5

b) 1/2x - 4 + 1/2x = 2

c) 2x= 3 2/3

d) 4x= 1 3/5

e) 5x = 2 3/8

Answer 1

a) x /2 + x/ 2+1=5 /*2

x+x+2=10

2x=10-2

2x=8

x=4

b) 1/2x-4+1/2x=2 x=2+4 x=6 c) 2x=3 i 2/3 2x=11/3 x=11/3*1/2 x=11/6 d) 4x=1 i 3/5 4x=8/5 x=8/5*1/4 x=2/5 e) 5x=2 i 3/8 5x=19/8 x=19/8*1/5 x=19/40

Answer 2

a) x/2 + x/2 + 1 = 5

x+1=5

x=4

b) 1/2x - 4 + 1/2x = 2

x-4=2

x=6

 

c) 2x= 3⅔

x=11/3 * 1/2

x=11/6

x=1⅚

 

d) 4x= 1⅗

x=8/5 *¼

x=⅖

 

e) 5x = 2 ⅜

x=19/8 *⅕

x=19/40