Question

aflati termenul necunoscut
(X-25)+30=80
((144:X+36):24)-2=1
(X x 9- 63)x 8- 48):3 +8=16
( X - 25)+30):4+15=35

Answer 1

(x-25) +30=80 ;(x-25 =80-30; x-25=50; x=50+25;x=75