Решите уравнения
1) 3-4x=4x-5
2) 4x+4=-6x-5
3) 3x+3=-2-7x
4)-1-8x=-10x+3
5)7-6x=-4x-6
6)2(x-7)=3
7) 5(x-9)=-2
8) 7(-3+2x)=-6x-1
9) 2(7+9x)=-6x+2
10) 4(2-3x)=-7x+10
Ответы
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1) 3-4x=4x-5
-4х-4х = -5-3
-8х = -8
х = 1
_____________
2) 4x+4=-6x-5
4х+6х=-5-4
10х= -9
x = -0.9
_____________
3) 3x+3=-2-7x
3x + 7x = -2 -3
10x = - 5
x = - 0.5
_____________
4)-1-8x=-10x+3
-8x+10x = 3+1
2x = 4
x = 2
______________
5)7-6x=-4x-6
-6x + 4x = -6-7
-2x = -13
x = 6.5
____________
6)2(x-7)=3
2x - 14 = 3
2x = 3+14
2x = 17
x = 8.5
______________
7) 5(x-9)=-2
5x - 45 = -2
5x = -2 + 45
5x = 43
x = 8.6
____________
8) 7(-3+2x)=-6x-1
-21 + 14x = -6x - 1
14x + 6x = -1+21
20x = 20
x = 1
______________
9) 2(7+9x)=-6x+2
14 + 18x = -6x + 2
18x+6x = 2-14
24x = -12
x = -0.5
__________________
10) 4(2-3x)=-7x+10
8 -12x =-7x + 10
-12x + 7x = 10-8
-5x = 2
x = -0.4
-4х-4х = -5-3
-8х = -8
х = 1
_____________
2) 4x+4=-6x-5
4х+6х=-5-4
10х= -9
x = -0.9
_____________
3) 3x+3=-2-7x
3x + 7x = -2 -3
10x = - 5
x = - 0.5
_____________
4)-1-8x=-10x+3
-8x+10x = 3+1
2x = 4
x = 2
______________
5)7-6x=-4x-6
-6x + 4x = -6-7
-2x = -13
x = 6.5
____________
6)2(x-7)=3
2x - 14 = 3
2x = 3+14
2x = 17
x = 8.5
______________
7) 5(x-9)=-2
5x - 45 = -2
5x = -2 + 45
5x = 43
x = 8.6
____________
8) 7(-3+2x)=-6x-1
-21 + 14x = -6x - 1
14x + 6x = -1+21
20x = 20
x = 1
______________
9) 2(7+9x)=-6x+2
14 + 18x = -6x + 2
18x+6x = 2-14
24x = -12
x = -0.5
__________________
10) 4(2-3x)=-7x+10
8 -12x =-7x + 10
-12x + 7x = 10-8
-5x = 2
x = -0.4
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