Matematika Sekolah Menengah Atas [+50]

1.) 8x - 3x = x + 4!
a.) 1
b.) 2
c.) 3
d.) 5
e.) 6

2.) 100 × 10 ÷ 500 + 0

Aku dilema pada soal no 1

[+50]

1.) 8x - 3x = x + 4!
a.) 1
b.) 2
c.) 3
d.) 5
e.) 6

2.) 100 × 10 ÷ 500 + 0

Aku dilema pada soal no 1 1)
8x - 3x = x + 4!
8x - 3x = x + (4 . 3 . 2 . 1)
8x - 3x = x + (12 . 2 . 1)
8x - 3x = x + (24 . 1)
8x - 3x = x + 24
(8 - 3)x = x + 24
5x = x + 24
5x - x = 24
5x - 1x = 24
(5 - 1)x = 24
4x = 24
x = 24/4
x = 6 {e.}
- - - - -
2)
100 . 10 : 500 + 0
= (100 . 10) : 500 + 0
= 1000 : 500 + 0
= 2 + 0
= 2





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Penjelasan dengan langkah-langkah:

1.) 8x - 3x = x + 4!

8x - 3x = x + (4 × 3 × 2 × 1)

8x - 3x = x + (12 × 2)

8x - 3x = x + 24

8x - 3x - x = 24

8x - 3x - 1x = 24

(8 - 3 - 1)x = 24

4x = 24

x = 24/4

x = 6 (e.)

2.) 100 × 10 ÷ 500 + 0

= 1.000 ÷ 500 + 0

= 2 + 0

= 2

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