Jawabanmu

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2014-06-10T20:45:10+07:00
6x+10-14x+6 = x+7
-8x+16 = x+7
9 = 9x
9/9 = x
1=x

semoga berguna. jawaban terbaik ya
2014-06-10T21:02:33+07:00
2(3x+5)-2(7x-3) = x+7,
6x+10-14x+6 = x+7,
6x-14x-x = 7-10-6
-9x = -9
-9x:-9 = -9:-9
x = 1