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Guffff
@Guffff
August 2022
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-2/3х+2,1=1/4х-1,2 ; 8(-у-2)=-5у-(6-9у) ; -b-(b/4+3/8)=1/2+(-3b/8-0,5)
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гюйс
Verified answer
- 2/3 х+2,1=1/4 х-1,2
1/4 х+2/3 х=2,1+1,2
3/12 х+8/12 х=3,3
11/12 х= 33/10
х=33/10 :11/12
х=33/10 * 12/11
х=18/5=3,6
8(-у-2)= - 5у-(6-9у)
-8у - 16= -5у-6+9у
-8у-18=4у-6
4у+8у=6-18
12у = -12
у= - 1
-b-(b/4 +3/8)=1/2+(-3b/8 -0,5)
-b - b/4 - 3/8=1/2 - 3b/8 - 0,5
-8b - 2b - 3=4 - 3b-4
10b-3b= -3
7b=-3
b= -3/7
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Verified answer
- 2/3 х+2,1=1/4 х-1,21/4 х+2/3 х=2,1+1,2
3/12 х+8/12 х=3,3
11/12 х= 33/10
х=33/10 :11/12
х=33/10 * 12/11
х=18/5=3,6
8(-у-2)= - 5у-(6-9у)
-8у - 16= -5у-6+9у
-8у-18=4у-6
4у+8у=6-18
12у = -12
у= - 1
-b-(b/4 +3/8)=1/2+(-3b/8 -0,5)
-b - b/4 - 3/8=1/2 - 3b/8 - 0,5
-8b - 2b - 3=4 - 3b-4
10b-3b= -3
7b=-3
b= -3/7