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-2m > 18
m < -9
5.) 10y+5-8y+4 kurang dr sm dg 3y+6
2y + 9 kurang dr sm dg 3y+6
-y kurang dr sm dg -3
y lebih dari sm dg 3
maaf kalau salah ^^
4m - 6 > 6m + 12
4m - 6m > 12 + 6
-2m > 18
m < -9
5) 5 (2y + 1) - 2 (4y - 2) ≤ 3 (y + 2)
10y + 5 - 8y + 4 ≤ 3y + 6
10y - 8y - 3y ≤ 6 - 5 - 4
-y ≤ -3
y ≥ 3
semoga membantu ya :)