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котэйкар
@котэйкар
July 2022
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помогите :а,г,ж
пожалуйста!!
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Tusky
А) 2(х - 5) = 9
2х - 10 = 9
2х = 10 + 9
2х = 19
х = 9,5
----------------------------
г) 1- 5(2 - 3х) = 6
1 - 10 + 15х = 6
15х = 6 + 10 - 1
15х = 15
х = 1
-----------------------
ж) 2х - (7 + х) = 2
2х - 7 - х = 2
х = 2 + 7
х = 9
0 votes
Thanks 1
кляча
Verified answer
2(x-5)=9;
2x-10=9;
2x=9+10;
2x=19;
x=19:2;
x=9,5.
1-5(2-3x)=6;
1-10-15x=6;
-15x=6-1+10;
-15x=15;
x=-1
2x-(7+x)=2;
2x-7-x=2;
x=2+7;
x=9
1 votes
Thanks 1
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Answers & Comments
2х - 10 = 9
2х = 10 + 9
2х = 19
х = 9,5
----------------------------
г) 1- 5(2 - 3х) = 6
1 - 10 + 15х = 6
15х = 6 + 10 - 1
15х = 15
х = 1
-----------------------
ж) 2х - (7 + х) = 2
2х - 7 - х = 2
х = 2 + 7
х = 9
Verified answer
2(x-5)=9;2x-10=9;
2x=9+10;
2x=19;
x=19:2;
x=9,5.
1-5(2-3x)=6;
1-10-15x=6;
-15x=6-1+10;
-15x=15;
x=-1
2x-(7+x)=2;
2x-7-x=2;
x=2+7;
x=9