Question

Решить пример 3(х-1)-2(3х+4)-(5х-7

Answer 1

3(х-1)-2(3х+4)-(5х-7)

3х-3-2(3х+4)-(5х-7)

3х-3-6х-8-(5х-7)

3х-3-6х-8-5х+7

-8х-3-8+7

-8х-4