1/3 * x + 6 = 2x
1/3 * x - 2x = - 6
- (2 - 1/3)*x = - 6
- 1 2/3 * x = - 6
x= - 6 : ( - 1 2/3) = - 6/1 * ( - 3/5) = 18/5
х= 3,6
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1/3 * 3,6 + 6 = 2 * 3,6
1/3 * 18/5 + 6 = 7,2
6/5 + 6 = 7,2
1,2 + 6 = 7,2
7,2 = 7,2
1/2 * (4х - 2) = - 7
4х/2 - 2/2 = -7
2х - 1 = - 7
2х = -7 + 1
2х = -6
х = - 6 /2
х = -3
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1/2 * ( 4 * (-3) - 2) = - 7
1/2 * (-14) = - 7
-14/2 = -7
-7 = -7
5/6 * х + 3 = 1/6 * х
5/6 * х - 1/6 *х = -3
4/6 * х = - 3
2/3 * х = - 3
х = - 3 : 2/3 = -3/1 * 3/2 = - 9/2
х = - 4,5
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5/6 * (-4,5) + 3 = 1/6 * (-4,5)
5/6 * (-9/2) + 3 = 1/6 * (- 9/2)
- 15/4 + 3 = - 3/4
- 3 3/4 + 3 = - 3/4
- 3/4 = - 3/4