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2x +6 = 3x +21
2x -3x = 21 -6
-x = 15
x = -15
2. 3(2y -2) = 4(y +2)
6y -6 = 4y +8
6y -4y = 8 +6
2y = 14
y = 14/7
y = 2
3. 8x +2 > 3x +3
8x -3x > 3 -2
5x > 1
x > 1/5
Itu jawabannya.
2x+6=3x+21
2x+6=3x+21
2x-3x=21-6
-x=15
x=-15
2.3(2y-2)=4(y+2)
6y-6=4y+8
6y-4y=8+6
2y=14
y=14/2
y=7
3. 8x+2>3x+3
8x-3x>3-2
5x>1
x>0.2
Kalau salah maaf ya...!!!