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Olenka [21]
3 years ago
6

If 5x+15y=45 then 6x-18y=?

Mathematics
1 answer:
vovangra [49]3 years ago
4 0
So we have 5x+15y=45
simplify and undistribute 5 from both sides
5(x+3y)=5(9)
divide both sides by 5
x+3y=9
multiply both sides by 6
6x+18y=54

if it was 6x+18y then the answer is 54
if it was 6x-18y, then I don't know the answer
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