Question

Решите уравнения
4(x-3)-2(1+x)=4-x
5,9-8n=7,3-6n
4(x-1,8)+3×(-0,4)=6

Answer 1

1)

$4(x-3)-2(1+x)=4-x\\4x-12-2-2x=4-x\\3x=18\\x=6$

2)

$5,9-8n=7,3-6n\\2n=-1,4\\n=-0,7$

3)

$4(x-1,8)+3(-0,4)=6\\4x-7,2-1,2=6\\4x=14,4\\x=3,6$