Question

Rozwiąż zadanie.

a) -2x+4=5x+25

b) 7y-8=-y+24

c) -8z+5=-z-1

Z góry dzięki ;));**

Answer 1

a) -2x + 4 = 5x+25

-2x + 5x = 25 - 4

3x= 21 / : 3

x = 7

b) 7y - 8 = -y +24

7y+ y = 24 + 8

8y = 32 / : 8

y = 4

c) -8z + 5= -z- 1

8z+z = 1- 5

9z = - 6

z = 1,5