mohon dibantu ya!!!  1. jika 1/2 (4x-2)=1/3(3x+6), nilai 4x + 6 adalah..,… 2. diketahui: A= {x|1


1. 1/2(4x-2) = 1/3(3x+6), 2x-1 = x+2, x = 3, jadi 4x + 6 = 18, 3. f(x) = 5x + b, f(3) = 5(3) + b=1221d4 b=-3, jadi f(x) = 5x -3, 4. m =0394y/0394x, m=(-3-1)/(2+4), m= -4/6 = -2/3, 5. y-y1 = m(x-x1), y-2=-2(x-10), y-2 = -2x +20, y = -2x + 22, 6. 1/2x – 1/5 < 2/5x -4, kanan kiri kalikan 10, 5x - 2 < 4x - 40, x < -38, x > 38, 7. x = kacang ; y= kripik, 3x + 4y = 8000 (kaLi satu), 6x + 2y = 9400 (bagi dua), di eliminasikan, 3x + 4y = 8000, 3x + y = 4700, _____________ _, 3y = 3300, y = 1100 = harga sebungkus kripik, 9. p = peniti ; q =benang, 3p + 4q = 2050, p + 3q = 1350, eliminasi subsitusi kayak diatas, q = 400 ;p = 150, jadi 10p + 5q = 3500, 10. tiga koin, toskan 2 koin dulu = { AA, AG, GA,GG}, lalu tos 1 koin lagi = B= {AAA,AAG,AAG,AGG,AAG,AGG,AGG,GGG}, jadi peluang muncul angka& gambar =(lihat himpunan B yg ada A,G nya)/jumlah elemen B= 6/8 = 3/4