Q.

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3x – 5 = x + 7

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Hm._.​

Q.

Jawaban:

maka x = 6

Penjelasan dengan langkah-langkah:

3x – 5 = x + 7

3x – x = 7 + 5

2x = 12

x = 12/2

x = 6

3x – 5 = x + 7

3x – 5 – x = 7

3x – 1x = 7 + 5

2x = 7 + 5

2x = 12

x = 12 ÷ 2

x = 6