Предмет: Алгебра, автор: QJOX

Найдите корень уравнения -5x=5x-6, -x-2=9x, -6x-5=4x, -x+7=6x. 7x+8=9x. -x+2=4x. -9x-8=-8x. -x-7=-5x. -5x+2=-10x. -2x+3=-8x.

Ответы

Автор ответа: mavzu2
0
1) -5x=5x-6
-5x+5x=-6
0=-6
2)-x-2=9x
-x-9x=2
-10x=2
x=-2/10 =-0.2
3)-6x-5=4x
-6x-4x=5
-10x=5
x=-5/10=-0.5
4)-x+7=6x
-x-6x=-7
-7x=-7
x=-7/-7
x=1
5)7x+8=9x
7x-9x=-8
-2x=8
x=-4
6) -x+2=4x
-x-4x=-2
-5x=-2
x=2/5=0.4
7) -9x-8=-8x
-9x+8x=8
-x=8
x=-8
8) -x-7=-5x
-x+5x=7
4x=7
x=1.75
9)-5x+2=-10x
-5x+10x=-2
5x=-2
x=-2/5=-0.4
10)-2x+3=-8x
-2x+8x=-3
6x=-3
x=-3/6=-0.5
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