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2009-04-20T19:14:35+02:00

2x+14=6x-15
-4x=-29/(-4)
x=29/4
x=7¼

3x-15+7=x+1
2x=9/:2
x=4,5
2009-04-20T19:15:03+02:00
2x+14=6x-15
2x-6x=-15-14
-4x=-29
x=29/4 = 7 1/4


3x-15+7=x+1
3x-x=1+15-7
2x=9
x=9/2 = 4 1/2
2009-04-20T19:18:33+02:00
2x+ 14 = 6x-15 -4x = -29 x = - 7¼ 3x - 15 +7 = x + 1 2x = 9 x=4½