Решите уравнение: 5/14х-12=4/21-7.5

Question

Решите уравнение: 5/14х-12=4/21-7.5

Answer 1

5/14x-12=4/21-75/10
5/14x=4/21-75/10+12
5/14x=(4*10)-(75*21)+(12*210)
5/14x=40-1575+2520
5/14x=985
x=985*14/5
x=197*14
x=2758