За пример даю 14 баллов.
1) - 3x = 12 - 2x
2) 5x + 3 = 7x - 3
3) 2x = - 6
4) - 10x - 6 = 5 + x
5) 3x + 2x + 4 = 9x - 2
1) - 3x = 12 - 2x
2) 5x + 3 = 7x - 3
3) 2x = - 6
4) - 10x - 6 = 5 + x
5) 3x + 2x + 4 = 9x - 2
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Answers & Comments
-3х+2х=12
-1х=12
х=-12
х=-12
2) 5х-7х=-3-3
-2х=-6 |÷(-1)
2х=6
х=3
3) 2х=-6
х=-3
4) -10х-х=5+6
-11х=11
х=11÷(-11)
х=-1
5) 3х+2х-9х=-2-6
-4х=-8
х=2