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x > 3+7
x > 10
3x-7 > 2x+2
3x-2x > 2+7
x > 9
x - 7+ 7 > 3+ 7
x > 10
Himpunan penyelesaian: {11,12,13,14,15...}
b. 3x - 7 > 2x + 2
3x - 2x - 7 + 7 > 2x -2x + 2 + 7
x > 9
Himpunan penyelesaian: {10,11,12,13,14...}