Tentukan himpunan penyelesaian dari persamaan berikut.
a. 3y + 15 = 5y - 1
b. 3a + 18/4 = 10a - 2/3
c. 1/2 (3x-6) = 2/3 (2x - 3)
d. 2 + 11/b = 7 1/2
a. 3y + 15 = 5y - 1
b. 3a + 18/4 = 10a - 2/3
c. 1/2 (3x-6) = 2/3 (2x - 3)
d. 2 + 11/b = 7 1/2
liwonsubagyo
A) 3y + 15 = 5y-1 ........ 3y -5y = -1 - 15 ..... -2y = -16 ...... y = 8...... b). 3a + 18/4 = 10a - 2/3....... 3a - 10a = -2/3 -18/4....... - 7a =- 62/12... - 84a = -62 ...... a = -62 + 84....!!! = 22........ c) 1/2 ( 3x -6 ) = 2/3 ( 2x -3) ..... 1½x - 3 = 4/3 x - 2 ....... 3/2x - ⁴/3 x = -2 + 3 ..... 1/6x = 1 ........ x = 6....... d). 2 + 11/b = 7 ½..... 11/b = 7½ - 2....... 11/b = 5½.... 11/b = 11/2 ........ b = 2........
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