Решите уповнение 1-(1-4x)=6

Question

Решите уповнение 1-(1-4x)=6

Answer 1

1-(1-4х)=6
1-1+4х=6
4х=6
х=1,5

Answer 2

1-(1-4x) = 6
1-1+4x = 6
4x = 6
x = 6:4
x = 1.5