2.tentukan nilai x dari 4x-10=2x
3.tentukan nilai x dari 2(x+1)+3=20-x
tolong bantu jawab
1.tentukan nilai x dari 7-2x=1
Jawaban:
No. 1
7 – 2x = 1
7 – 1 = 2x
6 = 2x
x = 3
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No. 2
4x – 10 = 2x
4x – 2x = 10
2x = 10
x = 5
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No. 3
2(x + 1) + 3 = 20 – x
2x + 2 + 3 = 20 – x
2x + x = 20 – 5
3x = 15
x = 5
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