4x -3(x-1.5)=9

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4x-3(x-1.5)=94x-3(x-1.5)=94x-3(x-1.5)=94x-3(x-1.5)=9去括号得4x-3x+4.5=9移项得:【4-3】x=9-4.5系数化为1得:x=4.54X-3X

4x -3(x-1.5)=9
4x -3(x-1.5)=9

4x -3(x-1.5)=9
4x -3(x-1.5)=9
去括号得 4x-3x+4.5=9
移项得:【4-3】x=9-4.5
系数化为1得:x=4.5

4X-3X+4.5=9
4X-3X=-4.5+9
X=9-4.5
X=4.5

4x-3x+3*1.5=9
x+4.5=9
x=4.5

4X-3x+3*4.5=9
x=4.5

去括号,得:4x-3x+4.5=9
移项,得:4x-3x=9-4.5
合并同类项得:x=4.5

4x-3x+4.5=9
x=9-4.5
x=4.5