tlg ya besok dikumpulkan
Matematika
aulia1658
Pertanyaan
tlg ya besok dikumpulkan
1 Jawaban
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1. Jawaban cupid85
1) 4x - 5 = 3
4x = 3 + 5
4x = 8
x = 2 ( B )
2) 3x - 4 = 32 + 7x
3x - 7x = 32 + 4
- 4x = 36
x = - 9 ( A )
3) ( x-1 / 2) - 2 = 2
( x-1 / 2) = 2 + 2
( x-1 / 2) = 4
x - 1 = 4 (2)
x - 1 = 8
x = 8 + 1
x = 9 ( D )
4) ⅓x + 2/5 x = 22
5/15 x + 6/15 x = 22
11/15 x = 22
x = 22 ÷ 11/15
x = 22 × 15/11
x = 30 ( D )
5) ( x-3 / 2) = ( 2x-4 / 3 )
3(x - 3) = 2(2x - 4)
3x - 9 = 4x - 8
3x - 4x = - 8 + 9
- x = 1
x = - 1 ( B )