РЕШИТЕ УРАВНЕНИЕ: с решением.
1) 5(3-2у)-4(9-у)=3(у+5);
2) 14(2х-3)-5(х+4)=2(3х+5)+5х;
3) 9(3х-7)+3(8х-11)=3(9х+8);
4) 6(7х-11)-13(х-6)=14(2х+1);
1) 5(3-2у)-4(9-у)=3(у+5);
2) 14(2х-3)-5(х+4)=2(3х+5)+5х;
3) 9(3х-7)+3(8х-11)=3(9х+8);
4) 6(7х-11)-13(х-6)=14(2х+1);
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Answers & Comments
-6-9у=0
у=-1,5
2 )28х-42-5х-20-6х-10-5х=0
12х=72
х=6
3) 27х-63+24х-33-27х-24=0
24х=120
х=5
4) 42х-66-13х+78-28х-14=0
х=2
-10y-3y+4y=15-15+36
-9y=36
y=-4
2)28x-42-5x+20=6x+10+5x
28x-5x-5x-6x=10-20+42
12x=32
x=
3)27x-63+24x-33=27x+24
27x-27x+24x=24+33+63
24x=120
x=5
4)42x-66-13x+78=28x+14
42x-13x-28x=14+66-78
x=2
28х-42-5х-20=6х+10+5х
28х-5х-6х-5х=10+42+20
12х=72
х=6