Question

решить уравнения
(3-5,8х)-(2,2х+3)=16

Answer 1

(3-5,8*х)-(2,2*х+3)=16
3+3-5.8x-2.2x=16
3+3-16=5.8x+2.2x
-7=8x
x=$frac{-7}{8}$

Answer 2

с этим тоже помоги))

Answer 3

(х-y-z)(x-y-z)

Answer 4

x^2-xy-xz-yx+y^2+yz-zx+zy+z^2