Matematika Sekolah Menengah Pertama 1) 2(x - 4) > 8 2) 3 (4x - 10) <6 3) 4x + 25 < 2x + 45 4) -(2x + 6) + 8 < 2 (2x - 5)​

abbeymcglynnulv – March 05, 2023

1) 2(x - 4) > 8
2) 3 (4x - 10) <6
3) 4x + 25 < 2x + 45 4) -(2x + 6) + 8 < 2 (2x - 5)​

Penjelasan dengan langkah-langkah:

1) 2(x - 4) > 8

x - 4 > 8/2

x - 4 > 4

x > 4 + 4

x > 8

2) 3 (4x - 10) <6

4x - 10 < 6/3

4x - 10 < 2

4x < 10 + 2

4x < 12

x < 12/4

x < 3

3) 4x + 25 < 2x + 45

4x - 2x < –25 + 45

2x < 20

x < 20/2

x < 10

4) -(2x + 6) + 8 < 2 (2x - 5)

–2x - 6 + 8 < 4x - 10

–2 + 2 < 4x – 10

–2x –4x < –2 –10

–6x < –12

x > –12/–6

x > 2

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