1) |х|+3=5
|х|=5-3
|х|=2
х=2. х=-2
2)|у|-2=1
|у|=1+2
|у|=3
у=3. у=-3
3)|2х|+3=9
2•|х|=9-3
2•|х|=6
|х|=3
х=3. х=-3
4)|5у|-4=6
5•|у|=6+4
5•|у|=10
|у|=2
у=2. у=-20
x+3=0 x=-3
x-5=0 x=5
1+x=0 x= -1
2x+14=6 2x=-8 x= -4
2x+14= -6 2x= -20 x= -10
9x-18=27 9x=27+18=45 x=5
9x-18=-27 9x=-27+18= -9 x= -1
8x+12=20 8x=8 x=1
8x+12= -20 8x=-32 x= - 4
1) |х|+3=5
|х|=5-3
|х|=2
х=2. х=-2
2)|у|-2=1
|у|=1+2
|у|=3
у=3. у=-3
3)|2х|+3=9
2•|х|=9-3
2•|х|=6
|х|=3
х=3. х=-3
4)|5у|-4=6
5•|у|=6+4
5•|у|=10
|у|=2
у=2. у=-20
x+3=0 x=-3
x-5=0 x=5
1+x=0 x= -1
2x+14=6 2x=-8 x= -4
2x+14= -6 2x= -20 x= -10
9x-18=27 9x=27+18=45 x=5
9x-18=-27 9x=-27+18= -9 x= -1
8x+12=20 8x=8 x=1
8x+12= -20 8x=-32 x= - 4