Question

[(72:a-3×4)×36-19×5]-(124×6-301×2)=195

Answer 1

[(72:a-3×4)×36-19×5]-(124×6-301×2)=195
[(72:a-12)×36-19×5]-(124×6-301×2)=195
(72:a-12)×36-95-(124×6-602)=195
(72:a-12)×36-95-(744-602)=195
(72:a-12)×36-95-142=195
(72:a-12)×36-95=195+142
(72:a-12)×36-95=337
(72:a-12)×36=337+95
(72:a-12)×36=432
(72:a-12)=432:36
72:a-12=12
72:a=12+12
72:a=24
a=72:24
a=3
Sper sa iti fie de ajutor!!