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m = 12/24
m = 1/2
b. 3z +11 = -28
3x = -28 -11
3x = -39
x = =-39/3
x = -13
c. 25 -4y = 6y +15
-4y -6y = 15 -25
-10y = -10
y = -10/-10
y = 1
d. 6/(a +2) = 4
4a +8 = 6
4a = 6 -8
4a = -2
a = -2/4
a = -1/2
e. -4x -15 = 1 -8x
-4x +8x = 1 +15
4x = 16
x = 16/4
x = 4
Itu jawabannya.