=》100 (2x PLUS 5y) = 20000
=》2x PLUS 5y = 200 .....#1
x PLUS y = 55 .......#2
Solve the above equations and get the answer !
:)
Written on Jan. 29, 2018, 2:17 a.m.
Written on Jan. 29, 2018, 2:17 a.m.
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