РЕШИТЕ УРАВНЕНИЯ 3-1\2Х=5 5Х-(1\2Х+9)=18 4.5(Х-1)-2.3(Х+2)=2.1 7(1-2Х)=4+3(Х-1) Х-3.5=-3.5*0.7. Created by lutsenkonastya. matematika-ru

РЕШИТЕ УРАВНЕНИЯ 3-1\2Х=5 5Х-(1\2Х+9)=18 4.5(Х-1)-2.3(Х+2)=2.1 7(1-2Х)=4+3(Х-1) ...

lutsenkonastya @lutsenkonastya

June 2022 1 13 Report

РЕШИТЕ УРАВНЕНИЯ 3-1\2Х=5 5Х-(1\2Х+9)=18 4.5(Х-1)-2.3(Х+2)=2.1 7(1-2Х)=4+3(Х-1)
Х-3.5=-3.5*0.7

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гюйс

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3- 1/2 х=5
1/2 х=3-5
1/2 х= -2
х= -2:1/,2= -2*2
х= - 4

5х- (1/2 х+9)=18
5х-1/2 х -9=18
4 1/2 х=27
х= 27 : 4 1/2
х=27 * 2/9
х=6

4,5(х-1)-2,3(х+2)=2,1
4,5х-4,5-2,3х-4,6=2,1
2,2х= -7
х=7 : 2,2
х=3 2/11=3,(18)

7(1-2х)=4+3(х-1)
7-14х=4+3х-3
3х+14х=7-1
17х=6
х=6/17

х-3,5= -3,5*0,7
х-3,5= -2,45
х=3-2,45
х=0,55

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