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No. 92x + 5 + 3x - 5 = 90
5x = 90
x = 90/5
= 18》d
BEC=180-75=105
AED+BEC=BEC+BEC=2.105=210(c)
9.3x+5+2x-5=90
5x=90
x=18
penyikuPOR= 2x-5=2.18-5=36-5=31(C)
10.3x+15+2x+10=180
5x=155
x=31
pelurus kln=2x+10=2.31+10=62+10=72(B)
semoga membantu :)
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