Question

634-[(206x4-618:3):X]x2=222
Xeste egal cu 3 dar nu stiu sal rezolv
30+3x[85-(75-65)xX+80]=375
Xeste 5
dar nu stiu cum sal rezolv
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Answer 1

634-[(206x4-618:3):X]x2=222
[(824-206):X]x2=634-222⇒412
(618:X)=412:2
618:X=206
x=618:206
X=3
30+3x[85-(75-65)xX+80]=375
3x(85-10xX+80)=375-30⇔345
(85-10xX+80)=345:3⇔115
85-10xX=115-80⇔35
10xX=85-35
10xX=50
X=50:10
X=5