November 2018 1 39 Report
Tentukan penyelesaian persamaan-persamaan berikut ini, kemudian tunjukkan penyelesaian itu pada garis bilangan.
a. 4x + 15 = 31
b. 7 ( 5 + x ) = -2x -1
c. 6 ( 3 + x ) -2 = 4 ( x -12 )
d. 5/2 - y = 2 ( y - 3/2 )

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