4X=2(X+12)-6 今天之内回答~
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4X=2(X+12)-6 今天之内回答~
4X=2(X+12)-6 今天之内回答~
4X=2(X+12)-6 今天之内回答~
4X=2(X+12)-6
4X=2X+24-6
2X=18
X=9
去括号4x=2x+24-6
移项4x-2x=24-6
合并同类项2x=18
系数化为1, x=9
4X=2X+24-6
2X=18
X=9
4X=2(X+12)-6
4X=2X+24-6
2X=18
X=9
4x=2x+24-6
4x-2x=24-6
2x=18
x=9
4X=2(X+12)-6
4X=2X+24-64x-2x=24-6
2X=18
X=9
4x=2x+24-6 4x-2x=18 ...
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4x=2x+24-6 4x-2x=18 2x=18 x=18÷2 x=9
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