1. 7y = 25 /:7
y = 7/25
2. 3/5x = 9 /•5
3x = 45
x = 15
3. 3x - 2x + 3 = 1
x + 3 = 1 /-3
x = -2
4. 17=11 - 2x /-11
17 - 11 = -2x
6 = -2x /:(-2)
x = -3
5. (4x+3)/3 = 4 /•3
4x + 3 = 12 /-3
4x = 9 /:4
x = 9/4
x = 2 i 1/4
mam nadzieje ze pomoglam i licze na naj <3
