Question

64:32+76-2×[(20+x×5):5]-36:3=50

Va rog mult sa imi rezolvati si mie exercitiul.

Answer 1

Răspuns:

64:32+76-2×[(20+5x):5]-36:3=50

2+76-2[(20+5x):5]=50+12

-2[(20+5x):5]=62-78

-2[(20+5x):5]=-16 (-1)

(20+5x):5=16:2

20+5x=8·5

5x=40-20

x=20:5

x=4

Answer 2

64:32+76-2×[(20+x×5):5]-36:3=50

2+76-2×[(20+x×5):5]-12=50

78-2×[(20+x×5):5]-12=50

78-2×[(20+x×5):5]=50+12

=62

2×[(20+x×5):5]=78-62

=16

[(20+x×5):5]=16:2

=8

(20+x×5)=8×5

=40

x×5=40-20

x×5=20

x=20:5

x=4

Bafta!!!!!