Odpowiedź:
a) 4a - 8 = 32
4a = 32 + 8
4a = 40 / : 4
a = 10
b) 3x - 8 = x + 4
3x - x = 4 + 8
2x = 12 / : 2
x = 6
c) 2(3x + 1) = 4x + 18
6x + 2 = 4x + 18
6x - 4x = 18 - 2
2x = 16 / : 2
x = 8
[tex]a) 4a-8=32\\4a=32+8\\4a=40/:4\\a=10\\\\b)3x-8=x+4\\3x-x=4+8\\2x=12/:2\\x=6\\\\c) 2(3x+1)=4x+18\\6x+2=4x+18\\6x-4x=18-2\\2x=16/:2\\x=8[/tex]
