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4x =23-7
4x = 16
x = 16/4
x =4
9x - 19 = 44
9x = 44 +19
9x = 63
x = 63/9
x = 7
17 - 5x = 19x - 55
-5x-19x = -55 - 17
-24x = - 72
x = -72/ -24
x = 3
5(3x-3) = 4(3x-4)
15x -15 = 12x - 16
15x - 12x = -16 +15
3x = -1
x = -1 / 3
4x + 7= 23
4x = 23 - 7
4x = 16
x = 16/4
x = 4
jawaban nomer 2
9x - 19= 44
9x = 44 + 19
9x = 63
x = 63/9
x = 7
jawaban nomer 3
17 - 5x = 19x - 55
-5x -19x = -55 - 17
-24x = - 72
x = -72/-24
x = 3
jawaban nomer 4
5 ( 3x - 3 ) = 4 (3x - 4)
15x - 15 = 12x - 16
15x - 12x = -16 + 15
3x = -1
x = -1/3