Question

Решите линейные уравнения: 1) 6x+18-0 2) 2x+5=0 3)2x-10=-3 4)-5x-1=0 5)-5x+6=0 6)9x+6=10x

Answer 1

1)6x+18=0
6x=-18
x=-3
2)2x+5=0
2x=-5
x=-2,5
3)2x-10=-3
2x=-3+10
2x=7
x=3,5
4)-5x-1=0
-5x=1
x=-0,2
5)-5x+6=0
-5x=-6
x=1,2
6)9x+6=10x
9x-10x=-6
-x=-6
x=6

Answer 2

1) 6x + 18 = 0
6x = -18
$x=- frac{18}{6} =-3$

2) 2x + 5 = 0
2x = -5
$x=- frac{5}{2} =-2 frac{1}{2} =-2,5$

3) 2x - 10 = -3
2x = -3 + 10
2x = 7
$x= frac{7}{2} =3 frac{1}{2} =3,5$

4) -5x - 1 = 0
-5x = 1
$x= frac{1}{-5} =-0,2$

5) -5x + 6 = 0
-5x = -6
5x = 6
$x= frac{6}{5} =1 frac{1}{5} =1,2$

6) 9x + 6 = 10x
6 = 10x - 9x
6 = x