Question

(423-c)÷(671-111×3×2)=70
(1000-d×2-25×4)÷6=143
(e-406÷2+29×4)÷3-108÷9=132
f÷7+25=[900-(300-48×5)×9]÷9
va multumesc pentru ajutor

Answer 1

f:7+25=[900-(300-48×5)×9]:9
f:7+25=[900-(300-240)×9]:9
f:7+25=(900-60×9):9
f:7+25=(900-540):9
f:7+25=360:9
f:7+25=40
f:7=40-25
f:7=15
f=15×7
f=105