13) If x +3y = 4 then 3x +9y is ________________ *
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then 3x +9y = 1
this is the solution of given equation
Answered by
1
ANSWER:
ANSWER=12
Step-by-step explanation:
bro here is solution,
x+3y=4
on multiplying both the side
means (x+3y=4)×3
then it will be 3x +9y=12
ANSWER=12
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