Ответ:
1) 5x+4=0
5x=-4
x=-4/5=0,8
2) -4x+3=0
-4x=-3
x=3/4=0,75
3)-10x+2=0
-10x=-2
x=1/5=0,2
4)4x-1=-7
4x=-6
x=-1,5
5)-6x+10=-2
-6x=-12
x=2
6)5(x-6)=2
5x-30=2
5x=32
x=32/5=6,4
7)5(x+9)=-8
5x+45=-8
5x=-53
x=-53/5=-10,6
8) -9(8-9x)=4x+5
-72+81x=4x+5
77x=77
x=1
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Ответ:
1) 5x+4=0
5x=-4
x=-4/5=0,8
2) -4x+3=0
-4x=-3
x=3/4=0,75
3)-10x+2=0
-10x=-2
x=1/5=0,2
4)4x-1=-7
4x=-6
x=-1,5
5)-6x+10=-2
-6x=-12
x=2
6)5(x-6)=2
5x-30=2
5x=32
x=32/5=6,4
7)5(x+9)=-8
5x+45=-8
5x=-53
x=-53/5=-10,6
8) -9(8-9x)=4x+5
-72+81x=4x+5
77x=77
x=1