Question

Rozwiaz rownania :
y-3=9-y
1/2z+6=z-1
3x-1=5x

Answer 1

1. y - 3 = 9 - y

y + y = 9 + 3

2y = 12  / :2

y = 6

2.  1/2z + 6 = z - 1

1/2z - z = -1 - 6

-1/2z = -7 / * (-2)

z = 14

3.  3x - 1 = 5x

3x - 5x = 1

-2x = 1 / :(-2)

x = - 1/2