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shark05
@shark05
June 2022
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пожалуйста помогите решить уравнение: -3×(2,1X-X)-4,2=1,2(-5
X+0,5)
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zhenyaM2002
Verified answer
- 3 * (2.1x -x) - 4.2 = 1.2 (-5x + 0.5)
- 3 * 1.1x - 4.2 = 1.2 * (-5x) + 1.2 * 0.5
- 3.3x - 4.2 = -6x + 0.6
- 3.3x + 6x = 0.6 + 4.2
2.7x = 4.8
x = 4.8 / 2.7 = 48/27 = 16/9
x = 1 7/9
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Answers & Comments
Verified answer
- 3 * (2.1x -x) - 4.2 = 1.2 (-5x + 0.5)- 3 * 1.1x - 4.2 = 1.2 * (-5x) + 1.2 * 0.5
- 3.3x - 4.2 = -6x + 0.6
- 3.3x + 6x = 0.6 + 4.2
2.7x = 4.8
x = 4.8 / 2.7 = 48/27 = 16/9
x = 1 7/9