Question

{[(x-8)•7 +6-5]-4}•3-2=10

Answer 1

{[(x-8)•7+6-5]-4}•3-2=10

{[(x-8)•7+6-5]-4}•3=10+2

{[(x-8)•7+6-5]-4}•3=12

[(x-8)•7+6-5]-4=12:3

[(x-8)•7+6-5]-4=4

(x-8)•7+6-5=4+4

(x-8)•7+6-5=8

(x-8)•7+6=8+5

(x-8)•7+6=13

(x-8)•7=13-6

(x-8)•7=7

x-8=7:7

x-8=1

x=8+1

x=9

V: 9-8=1

Cu plăcere!