Tentukan himpunan penyelesaian dari:
a. 4x+5 = 3x-7
b. 6x +3 < 3x -12
a. 4x+5 = 3x-7
b. 6x +3 < 3x -12
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Verified answer
MAPEL = MATEMATIKAKELAS = 7
BAB = SPLSV & PTLSV
A.
4x + 5 = 3x - 7
4x - 3x = -7 - 5
x = -12
B.
6x + 3 < 3x - 12
6x - 3x < -12 - 3
3x < -15
x < -15/3
x < -5
semoga membantu
Verified answer
A.Hp = { -12 }
b.
Hp = { x|x < -5 }
Cek tanda : (memasukkan nilai yg < -5, contoh -6 6(-6) + 3 < 3(-6) - 12 -36 + 3 < -18 - 12 -33 < -30 (Benar) jadi, Hp = {x|x < -5}