Question

РЕШИ уравнения 2100-х=1920:2

Answer 1

2100-x=1920:2

2100-x=960

x=2100-960

x= 1140

Answer 2

$2100 - x = 1920 \div 2 \\ - x = 1920 \div 2 - 2100 \\ - x = - 1140 \\ x = 1140$