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NastyaZ215
@NastyaZ215
July 2022
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dimochka3777
А)
( x - 5 ) : 2,5 = -4 |*2,5
( x - 5 ) = -10
x - 5 = -10
x = -5
Б)
2x - 0,4 = 0,6
2x = 1
x = 0,5
В)
( x + 4,6 ) * 2,4 = -9,6 |:2,4
( x + 4,6 ) = -4
x + 4,6 = -4
x = -8,6
Г)
( x - 3,2 ) * 5,4 = 0
x - 3,2 = 0
x = 3,2
Д)
x - 2,75 - 1,75 = 4,5
x = 4,5 + 4,5 = 9
E)
x * 2,5 * (-0,4) = -10
-x = -10
x = 10
Ж)
3x + 5x -4,7x = 0
8x - 4,7x = 0
3,3x = 0
x = 0
З)
( x - 3,2 ) * 3.4 = 0
x - 3,2 = 0
x = 3,2
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Answers & Comments
( x - 5 ) : 2,5 = -4 |*2,5
( x - 5 ) = -10
x - 5 = -10
x = -5
Б)
2x - 0,4 = 0,6
2x = 1
x = 0,5
В)
( x + 4,6 ) * 2,4 = -9,6 |:2,4
( x + 4,6 ) = -4
x + 4,6 = -4
x = -8,6
Г)
( x - 3,2 ) * 5,4 = 0
x - 3,2 = 0
x = 3,2
Д)
x - 2,75 - 1,75 = 4,5
x = 4,5 + 4,5 = 9
E)
x * 2,5 * (-0,4) = -10
-x = -10
x = 10
Ж)
3x + 5x -4,7x = 0
8x - 4,7x = 0
3,3x = 0
x = 0
З)
( x - 3,2 ) * 3.4 = 0
x - 3,2 = 0
x = 3,2