Задание 1. Решите уравнение: 1) 7х+2(2, 4-5x)=1,8 а) раскройте скобки * 7x-4.8+1Ox=18
7x-48-10x= 1.8
7х+48+10x=1.8
О
7х+48-10x=1.8​
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