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iloveyoy
@iloveyoy
July 2022
2
2
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1)7х-(3х+2х)=х+9
2) 13-(2х-5)=х-3
3) 3х-(10-9х)=22х
4) 26-(17-2х)=5х
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xnasika
1)7х-(3х+2х)=х+9
7х-3х-2х=х+9
2х=х+9
2х-х=9
х=9
2) 13-(2х-5)=х-3
13-2х+5=х-3
-2х-х=-3-13-5
-3х=-21
х=7
3) 3х-(10-9х)=22х
3х-10+9х=22х
12х-10=22х
22х-12х=-10
10х=-10
х=-1
4) 26-(17-2х)=5х
26-17+2х=5х
5х-2х=9
3х=9
х=3
7 votes
Thanks 8
JuliGreat
4) 26-(17-2х)=5х
26-17+2х=5х
2х-5х=9
-3х=9
х=-3
3 votes
Thanks 2
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Answers & Comments
7х-3х-2х=х+9
2х=х+9
2х-х=9
х=9
2) 13-(2х-5)=х-3
13-2х+5=х-3
-2х-х=-3-13-5
-3х=-21
х=7
3) 3х-(10-9х)=22х
3х-10+9х=22х
12х-10=22х
22х-12х=-10
10х=-10
х=-1
4) 26-(17-2х)=5х
26-17+2х=5х
5х-2х=9
3х=9
х=3
26-17+2х=5х
2х-5х=9
-3х=9
х=-3