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pelageyamalik
@pelageyamalik
July 2022
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Решить уравнения. Подробно распишите.
А) -1,5х = 6
Б) 4х - 7 = х-3
В) 15 (х+2) - 13=12х+17
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гюйс
Verified answer
- 1,5х=6
х= - 6:1,5
х= - 4
(-1,5)*(-4)=6
4х-7=х-3
4х-х=-3+7
3х=4
х=4:3
х=1 1/3
4*1 1/3 - 7=1 1/3 - 3
- 1 2/3= - 1 2/3
15(х+2)-13=12х+17
15х+30-13=12х+17
15х+17=12х+17
15х-17х=17-17
- 2х=0
х=0
15(0+2)-13=12*0+17
17=17
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Thanks 1
sonya555444
А) -1,5х=6х=6:1,5х=4Б)4х=х-34х-х=33х=3х=1В)15 (х+2) - 13=12х+1715х+30-13=12х+1715х-12х=-30+13+173х=0х=0
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Thanks 0
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Answers & Comments
Verified answer
- 1,5х=6х= - 6:1,5
х= - 4
(-1,5)*(-4)=6
4х-7=х-3
4х-х=-3+7
3х=4
х=4:3
х=1 1/3
4*1 1/3 - 7=1 1/3 - 3
- 1 2/3= - 1 2/3
15(х+2)-13=12х+17
15х+30-13=12х+17
15х+17=12х+17
15х-17х=17-17
- 2х=0
х=0
15(0+2)-13=12*0+17
17=17