Question

480-x:15-270=120 уровнение

Answer 1

$480 - x \div 15 - 270 = 120 \\ 480 - \frac{x}{15} = 120 \\ 3150 - x = 1800 \\ - x = 1800 - 3150 \\ - x = - 1350 \\ x = 1350$

Answer 2

480-x÷15-270=120

480-x÷15=120+270

480-x÷15=390

x÷15=480-390

x÷15=90

x=90×15

x=1350