1. selesaikan PtLSV berikut
a. 5x - 1 > 3x + 7
b. 3( x - 2 ) > 6x + 9
c. 10 + 2 ( x + 3 ) ≤ 2
a. 5x - 1 > 3x + 7
b. 3( x - 2 ) > 6x + 9
c. 10 + 2 ( x + 3 ) ≤ 2
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5x - 3x > 7 + 1
2x > 8
x > 8/2
x > 4
===
3(x - 2) > 6x + 9
3x - 6 > 6x + 9
3x - 6x > 9 + 6
-3x > 15
3x < -15
x < -15/3
x < -5
===
10 + 2(x + 3) ≤ 2
10 + 2x + 6 ≤ 2
2x ≤ 2 - 10 - 6
2x ≤ -14
x ≤ -14/2
x ≤ -7
5x - 1 > 3x + 7
5x - 3x > 7 + 1
2x > 8
x > 4
nomor b
3(x-2) > 6x + 9
3x - 6 > 6x + 9
3x - 6x > 9 + 6
-3x > 15
3x < -15
x < -5
nomor c
10 + 2(x + 3) ≤ 2
10 + 2x + 6 ≤2
16 + 2x ≤2
2x ≤2 - 16
2x ≤ -14
x ≤ -7