1.3х + 7 = 7 – 3х 29(7 – х) + 2(5 + х) = 13
3х=-3х 63-9х+10+2х=13.
3х+3х=0 73-7х=13.
6х=0 -7х=13-73
х=0 -7х=-60.
1.3х + 7 = 7 – 3х 29(7 – х) + 2(5 + х) = 13
3х=-3х 63-9х+10+2х=13.
3х+3х=0 73-7х=13.
6х=0 -7х=13-73
х=0 -7х=-60.