Proszę o pilną pomoc ! ;).. kto mi to rozwiąże..? xd
a) 2(3x+4)-3(5x-6)+4(7x+8)=115
a)
2(3x+4)-3(5x-6)+4(7x+8)=115
6x+8-15x+18+28x+32=115
19x=115-8-18-32
19x=57 /:19
x= 3
19x=115-48
19x=67/19
x=3
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a)
2(3x+4)-3(5x-6)+4(7x+8)=115
6x+8-15x+18+28x+32=115
19x=115-8-18-32
19x=57 /:19
x= 3
6x+8-15x+18+28x+32=115
19x=115-48
19x=67/19
x=3