[tex]1.2x - 1 < 7 \\ 2.2(x - 3) < 3(2x + 1) \\ 3.12 - 6y \geqslant - 6 \\ 4.3(2x - 1) \leqslant 2x + 9[/tex] tolong jawabin dong
Matematika
saidah220405
Pertanyaan
[tex]1.2x - 1 < 7 \\ 2.2(x - 3) < 3(2x + 1) \\ 3.12 - 6y \geqslant - 6 \\ 4.3(2x - 1) \leqslant 2x + 9[/tex]
tolong jawabin dong
2 Jawaban
-
1. Jawaban diyaaann2
1.
[tex]2x - 1 < 7 \\ 2x < 7 + 1 \\ 2x < 8 \\ x < \frac{8}{2} \\ x < 4[/tex]
hp = x = { 3,2,1..}
2.
[tex]2(x - 3) < 3(x + 1) \\ 2x - 6 < 3x + 1 \\ 2x - 3x < 1 + 6 \\ - x < 7 \\ x < - 7[/tex]
hp = x {-8,-9,-10...}
3.
[tex]12 - 6y \geqslant - 6 \\ - 6y \geqslant - 6 - 12 \\ - 6y \geqslant - 18 \\ y \geqslant \frac{ - 18}{ - 6} \\ y \geqslant 3[/tex]
hp = x {3,4,5,6...}
4.
[tex]3(2x - 1) \leqslant 2x + 9 \\ 6x - 3 \leqslant 2x + 9 \\ 6x - 2x \leqslant 9 + 3 \\ 4x \leqslant 12 \\ x \leqslant \frac{12}{4} \\ x \leqslant 3[/tex]
hp = x {3,2,1,0..}
semoga membantu -
2. Jawaban lynadiana3ozvim9
1. 2x < 1+7 berarti 2x < 8 berarti x < 8/2 berarti x < 4
2. 2x-6 < 6x + 3 berarti 2x -6x < 3+6 berarti -4x < 9 berarti x > -9/4 berarti x > -2,25
3. 6+12 ≥ 6y berarti 18 ≥ 6y berarti 18/6 ≥ y berarti 3 ≥ y
4. 6x - 3 ≤ 2x + 9 berarti 6x - 2x ≤ 3 + 9 berarti 4x ≤ 12 berarti x ≤ 12/4 berarti x ≤ 3