Răspunsuri

2014-10-20T20:53:56+03:00

2x+5=3-148

2x=-145-5

2x=-150

x=-75

2x+5=
2x+5= 3-148 2x+5= -145
148-3=2x+5 145-5=2x 140=2x x=140:2, x=70
2014-10-20T20:53:59+03:00
148-3=2x+5, 145=2x-5, 145-5=2x, 140=2x, x=140:2, x=70.