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AlanTGamerz
@AlanTGamerz
August 2022
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Решите уравнения:
1) 2x + 3 ( 5 - x ) = 15,5
2) 15 - 4 ( 7 + 2x ) = 1
3) 3 ( 11 + x ) -( 2x - 5 ) = 11
4) 5 (3 - 2x) - 8 (x-1) = 3+ 22x
( нужно с полным решением)
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leksase
1)2х + 3(5-Х)=15,5
2х+15-3х=15,5
2х-3х=15,5-15
-Х=0.5
2)15-4(7+2х)=1
15-28-8х=1
-8х=1-15+28
-8х=14
-Х=14/8
Х=-(14/8)
3)3(11+Х)-(2х-5)=11
33+3х-2х+5=11
3х-2х=11-33-5
Х=-27
4)5(3-2х)-8(Х-1)=3+22х
15-10х-8х+8=3+22х
-10х-8х-22х=3-15-8
-40х=-20
Х=-20/-40
Х=1/2(0,5)
3 votes
Thanks 3
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Answers & Comments
2х+15-3х=15,5
2х-3х=15,5-15
-Х=0.5
2)15-4(7+2х)=1
15-28-8х=1
-8х=1-15+28
-8х=14
-Х=14/8
Х=-(14/8)
3)3(11+Х)-(2х-5)=11
33+3х-2х+5=11
3х-2х=11-33-5
Х=-27
4)5(3-2х)-8(Х-1)=3+22х
15-10х-8х+8=3+22х
-10х-8х-22х=3-15-8
-40х=-20
Х=-20/-40
Х=1/2(0,5)