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untuk no 2 ) sdh kk' jawab di postingan yg lain
untuk no 3 )
a) 7a - 5 = 6a + 3
7a - 6a = 3 + 5
a = 8
b) 5x + 3 = 11 + x
5x - x = 11 - 3
4x = 8
x = 2
c) 4x - 5 = 2x + 3
4x - 2x = 3 + 5
2x = 8
x = 4
d) 5m + 8 = 2m
5m - 2m = -8
3m = -8
m = -8/3
e) 3(x + 1) -2(1 - x) = -1/2 ( 3 - 5x)
3x + 3 - 2 + 2x = -3/2 + 5x/2
x + 1 = -3/2 + 5x/2 kalika semua ruas dg 2
2x + 2 = -3 + 5x
2x - 5x = -3 -2
- 3x = -5
x = 5/3
f) 5(y - 2) - 1/3(3 - 3y) + 5 = 0
5y - 10 - 1 + y + 5 = 0
6y = 6
y = 1
untuk no 4 dan 5 ) kk' jawab di postingan yg lain lg