1)
2x - 3 (4 - x) = 5 - (x - 1)
2x - 12 + 3x = 5 - x + 1
6x = 18
x = 3
2)
5x - 6 (2x + 7) = 13 - (x + 1)
5x - 12x - 42 = 13 - x - 1
-6x = 54
x = -9
<span>4х+5=2(х+1)+11;
4х+5=2х+2+11;
4х-2х=-5+2+11;
2х=8;
х=4.</span>
<span>A(1;1) D(10;1) C(6;7) B(4;7) H(1;4)
</span>
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</span>
0,1х=2,3-1,2
0,1х=1,1
х=1,1/0,1
х=11