30x - 20 = 100
30x = 100 + 20
30x = 120
x = 120/30
x = 4
= 50x + 3
= 50(4) + 3
= 200 + 3
= 203
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No. 1
30x - 20 = 100
30x = 100 + 20
30x = 120
x = 120/30
x = 4
No. 2
= 50x + 3
= 50(4) + 3
= 200 + 3
= 203