January 2019 1 19 Report
1. Tentukan nilai variabel dari persamaan-persamaaan di bawah ini.
a. 5(a+1) = 10
b. 0,5(4t-10) = 2(t+5)
c. 3(2z-1) + 1 = -2(2z+9)
d. -(4n-4) + 5n = 2n + 8
e. 20(3x+1) = -50(5-x)

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