Question

Vă rog să mă ajutați la exercițiu . [(20+339:3+a:4)×7-5×400]:3-22×3+125×8=1000

Answer 1

[(20+113+a:4)×7-2000]:3-66+1000=1000
[(133+a:4)×7-2000]:3=66
(133+a:4)×7-2000=198
(133+a:4)×7=2198
133+a:4=314
a:4=181
a=724

Answer 2

[(20+339÷3+a÷4)×7-5×400]÷3-22×3+125×8=1000
[(133+a÷4)×7- 2000]÷3-66+1000=1000
[(133+a÷4)×7- 2000]÷3=1000 -1000+66
(133+a÷4)×7- 2000=66×3
(133+a÷4)×7=2000+198
133+a÷4=2198÷7
133+a÷4=314
a÷4=314-133
a÷4= 181
a=181×4
a=724