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=4xkuadrat+6x+6x9
=4xkuadrat+12x+9
2. 8-y=6
-y=6-8
-y=-2 (kedua ruas dikali -1) untuk menghilangkan -y
y=2
3. 7y-24=-5y
7y+5y=24
12y=24
y=24/12
y=2
4. 3(x+1)+2(x-4)=10
3x+3+2x-8=10
3x+2x+3-8=10
5x-5=10
5x=10-5
5x=5
x=5/5
x=1
5. y-5<3y+11
y-3y<5+11
-2y<16
y>16/-2
y>-8 [untuk yg nmr 5 sy kurang tau ttg penukaran lambang.. takut keliru tlng d cek lg]
6. A=> x<1/5
B=> x+y>10
C=> 7>1-2x [sy pilih B karena yg B dua variabel]
=4xkuadrat+6x+6x9
=4xkuadrat+12x+9
2. 8-y=6
-y=6-8
-y=-2
y=2
3. 7y-24=-5y
7y+5y=24
12y=24
y=24/12
y=2
4. 3(x+1)+2(x-4)=10
3x+3+2x-8=10
3x+2x+3-8=10
5x-5=10
5x=10-5
5x=5
x=5/5
x=1