danielboek
29.01.2021 •
Mathematics
Which of the following expressions is equivalent to - 1/2 (2 – 2x) + 3?
A) X + 2
B) x - 1
C) 2 - x
D) x - 2.5
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Ответ:
A
Step-by-step explanation:
-1/2(2-2x)+3
Use the distributive property:
-1+x+3Add like terms:
2+x or x+2Ответ:
12 and 28, because
n + (2n + 4) = 40
3n + 4 = 40
3n = 36 n = 12
12x2 + 4 = 28
28 is the larger number.