Question

Astfel xeN astfel încât
1) [37-(x-1)×3]×2=14
2) [(x-3)×2+7]÷5=15

Va rog trimiteri răspunsurile voastre

Answer 1

1) [37-(x-1)×3]×2=14
 =>37-(x-1)×3=14÷2=>
=>37-(x-1)×3=7=>
=>37-7=x-1)×3=>
=>30=(x-1)×3=>
=>30÷3=x-1=>
=>10=x-1=>
=>x=10+1=>
=>x=11
2) [(x-3)×2+7]÷5=15=>
=>(x-3)×2+7=15*5=>
=>(x-3)×2+7=75=>
=>(x-3)×2=75-7=>
=>(x-3)×2=68=>
=>x-3=68÷2=>
=>x-3=34=>
=>x=34+3=>
=>x=37