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kari74 [83]
3 years ago
13

ASAP QUESTIONS PLEASE ANSWER

Mathematics
1 answer:
suter [353]3 years ago
5 0
[Would be better if you submit these as separate questions]

<span>4x+3y=54
3x+9y=108 
multiply upper by 3 and subtract from lower:

3x - 12x = 108 - 162
9x = 54
x = 6
y = 10

2nd one is 36xy, see other question.

x</span>²+3x-18 factors as (x+6)(x-3)<span>

</span>
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