Question

Tolong nomer 11 sampai 17 pertanyaan ini khusus syubbana

Answer 1

No 11)
(3x+5) - (2x-3) = -2
3x - 2x + 5 -(-3) = -2
x + 8 = -2
x = -2 -8
x = -10

no 12)

8(x+1) + 2(x+4) = 20
8x + 8 + 2x + 8 = 20
10x + 16 = 20
10x = 20-16
10x = 4
x = 4/10

jawaban tdk ada dalam opsi

no 13)

15x/5 -12 = 13
3x - 12 = 13
3x = 13+12
3x = 25
x = 25/3

jawaban tdk ada dalam opsi

no 14)
2a/3 - 1/4 = 31/4
2a/3 = 32/4
2a = 96/4
2a = 24
a = 12

no 15)

a) 2m - 3 = 7
    2m = 7+3
    2m = 10
     m = 5 (benar)
   jawaban A

no 16) 

3x - 2 < 13
3x < 15
x < 5

jawaban B

no 17)

3x - 2 > 4x + 6
3x - 4x > 6+2
-x > 8
x < -8

jawaban C