Question

a) 4 ÷ 2⅖ + ( - ⁴/₃ ) × ( -2,5 ) =

b) ⅖ × 0,7 + 75 ÷ 3⅕ =

c) x + 2 + ( - ¼x ) + ⁷/₅x + 2 =

OBLICZ x

d) 3 ( x - 2 ) = x - 10

e) 3 ( x + 2 ) - 4 = 6 + 1,5 ( 2x + 4 )

f) 7x + 10 = 48

g) x+2 ÷ 9 - 1 = 1 - 3 ÷ 3

h) 3x - 1 ÷ 3 + 7 =

i) 1 - x ÷ 3 = x + 2 ÷ 9 - 1

j) -2x + 5 = -1 -2x

Answer 1

b)=o,4x0,7+75÷3,2=0,28+23,4375=23,7175

a)=4/1 ÷ 2i2/5 + (-4/3) x (-2i1/2)= 4/1÷ 12/5 + (-4/3) x (-5/2) = 4/1 x 5/12 + 20/6 = 5/3 + 20/6= 30/6 

Answer 2

a)

 

b)

 

c)

d)

e)

f)

g)

h)

i)

j)5=-1 sprzecznosc