If twice a certain integer is subtracted from 5... - WAEC Mathematics 1989 Question
If twice a certain integer is subtracted from 5 times the integer, the result is 63. Find the integer.
A
21
B
9
C
7
D
4
correct option: a
Let the integer = y
\(\therefore\) 5y - 2y = 63
3y = 63 \(\implies\) y = 21
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