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daniel7363
01.01.2020 •
Mathematics
Which expression is equivalent to 18s-27?
a)9×2(s-t)
b)9(2s-3t)
c)6(3s-4t)
d)6×3(s-t)
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Ответ:
Let's go through each answer, and see which one is right.
A) 9 × 2(s-t)
Simplify that.
18(s-t)
18s-18t
So, A) is incorrect.
B) 9(2s-3t)
Simplify.
18s-27t
B) is the correct answer
C) 6(3s-4t)
Simplify.
18s-24t is incorrect because it is not equal to 18s-27
So, C) is incorrect.
D) 6 × 3(s-t)
Simplify.
18(s-t)
18s-18t
D) is incorrect.
So, your answer is B) 9(2s-3t)
~Hope I helped!~
Ответ: