arianawelsh123l
02.08.2019 •
Mathematics
Which property was used to simplify the expression? i will mark brainliest for the correct answer. 3c + 9 + 4c = 3c + 4c + 9 a.distributive property b.commutative property c.associative property d.inverse property
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Ответ:
Sense nothing really changed and they just moved.
Ответ:
-3.5
Step-by-step explanation:
25^(x+3)=1/5
5^2(x+3)=5^-1
now we equate powers.
2(x+3)=-1
2x+6=-1
2x=-7
x=-3.5