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natka813 [3]
3 years ago
14

5x + 10y = 18

Mathematics
2 answers:
GarryVolchara [31]3 years ago
5 0
5y - 30 + 10y = 18 <== ur answer
SOVA2 [1]3 years ago
4 0
5x + 10y = 18

x = y -6, we substitute this into first equation.

5x + 10y = 18

5*(y - 6) + 10y = 18

5y - 30 + 10y = 18

So it the last option from the top.
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