Пошаговое объяснение:
3(х+2)-х=10
2х=10-6
х=4/2=2
4х+3(х-7)=5
7х=21+5
х=26/7=3 5/7
5-х=4(х-3)
4х+х=5+12
х=17/5=3,4
7-(2х+3)=9
4-2х=9
2х=4-9
х=-5/2=-2,5
1/2 •(х-4)+3х=5
1/2 •х-2+3х=5
7/2 •х=5+2
х=7•2/7=2
5х-(1/2 •х+9)=18
9/2 •х=18+9
х=27•2/9=3•2=6
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Пошаговое объяснение:
3(х+2)-х=10
2х=10-6
х=4/2=2
4х+3(х-7)=5
7х=21+5
х=26/7=3 5/7
5-х=4(х-3)
4х+х=5+12
х=17/5=3,4
7-(2х+3)=9
4-2х=9
2х=4-9
х=-5/2=-2,5
1/2 •(х-4)+3х=5
1/2 •х-2+3х=5
7/2 •х=5+2
х=7•2/7=2
5х-(1/2 •х+9)=18
9/2 •х=18+9
х=27•2/9=3•2=6