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-2x + 3 < x – 6
-2x-x < -6-3
-3x < -9
x < -9/-3
x < 3
Hp { 2,1,0,...}
nomor 2 :
7 (2y + 1) ≥ 8y – 11
14y + 7 ≥ 8y-11
14y-8y ≥ -11 -7
6y ≥ - 18
y ≥ -18/6
y ≥ -3
Hp {-3, -2,-1,0,1...}
-2 x - x < -6 - 3 3+6 < 2x +x
-3x < -9 3 < x
x > 3 x > 3
hp={4,5,6,7,..}
2. 7 (2y + 1) ≥ 8y – 11
14 y + 7 ≥ 8y - 11
14y - 8y ≥ -11 -7
6y ≥ -18
y ≥ -3
hp={ -3,-2,-1,0,1,...}
semoga membantu :)