Tolong secepatnya jangan asal², dan yang benar saya doakan rezeki lancar Amin
Jawab:
1. x + 2 = 6 – x
2x = 4
x = 2
2. -3x + 5 = x – 7
-2x = -12
x = 6
3. 6x + 2 ≥ x – 3
5x ≥ -5
x ≥ -1
4. 5x ≥ -x + 12
6x ≥ 12
x ≥ 2
5. (4x + 2) + 2(x+1) > 5x – 2
4x + 2 + 2x + 2 > 5x – 2
6x + 4 > 5x – 2
x > -6
Jawaban:
Nomor 1
x + 2 = 6 – x
x + x = 6 – 2
2x = 4
x = 4 : 2
x = 2
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Nomor 2
-3x + 5 = x – 7
-3x – x = -7 – 5
-4x = -12
x = -12 : -4
x = 3
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Nomor 3
6x + 2 ≥ x – 3
6x – x ≥ -3 – 2
5x ≥ -5
x ≥ -5 : 5
x ≥ 1
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Nomor 4
5x ≥ -x + 12
5x + x ≥ 12
6x ≥ 12
x ≥ 12 : 6
x ≥ 2
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Nomor 5
(4x + 2) + 2(x + 1) > 5x – 2
4x + 2 + 2x + 2 > 5x – 2
4x + 2x – 5x > -2 – 2 – 2
6x – 5x > -4 – 2
1x > -6
x > -6
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Semoga membantu :)