Question

решите 7.23 срочнооо

Answer 1

а)
2x-7x/4
2x*4=8x
(8x-7x)/4
X/4
Б)
(a-b+5a+5b)/(a+b)
(6a+4b)/(a+b)
В)
(3y+3-2)/(y+1)
(3y+1)/(y+1)
Г)
(5c-c^2-5c+16)/(5-c)
(-c^2+16)/(5-c)