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26.07.2019 •
Mathematics
–4/5 (9x – 20) – 3x = 4/5 x – 6. enter the value of x that makes this equation true.
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Ответ:
-36/5*x+16-3x-4/5*x= -6
-36/5*x-15x/5-4/5*x=-6-16
-55/5*x=-22
-11x= -22
x= -22:(-11)
x=2
-4/5(9*2-20)-3*2=4/5*2-6
-4/5*(-2)-6=8/5-6
8/5-6=8/5-6
Ответ:
x=2 & x=1
step-by-step explanation:
7*1=7
7*2=14
7 is less than 21
14 is less than 21