Question

1.) 4w + (2w + 15) - 3(w +3) = 0
2.) 12 + 4(2k - 1) = 6(k+2)
3.) a-2/3 + a-3/4 = 5/6a -1 1/4

Answer 1

1) 6w + 15 - 3w - 9 = 0
3w + 6 = 0
3w = -6
w = -6/3
w = -2
2) 12 + 8k - 4 = 6k + 12
8k - 6k = 12 - 12 + 4
2k = 4
k = 4/2
k = 2
3) 2a - 5/6a = 2/3 + 3/4 - 5/4
7/6a = 2/3 - 1/2
7/6a = 1/6
a = 1/6 : 7/6
a = 1/7

smg membantu, kl blh jdikan yg terbaik :)