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samueltaye
28.01.2021 •
Mathematics
Please help me with this
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Ответ:
4
Step-by-step explanation:
Need to know #, and solve :
#
is the same as ![\frac{2*S}{3}](/tpl/images/1074/2337/f5501.png)
#you need the same denominator to be able to add or subtract fractions
#
is the same as ![\frac{4}{6}](/tpl/images/1074/2337/d6304.png)
#
is the same as a*d = b*c
6 ( 2*s - 4) = 3 ( s+4)
# distribute multiplication over addition and subtraction
12s-24 = 3s+12
#isolate like terms
12s-3s = 12+24
#combine like terms
9s = 36
#divide both sides by 9
s= 4
Ответ:
Step-by-step explanation:
3^-2= 1/9
Normally 3^2 is 9 but since the power is a negative, you but the 9 as the bottom or denominator of a fraction.