解方程 150(x-10)=90(x-8)

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解方程 150(x-10)=90(x-8)
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解方程 150(x-10)=90(x-8)
解方程 150(x-10)=90(x-8)

解方程 150(x-10)=90(x-8)
150(x-10)=90(x-8)
150x-1500=90x-720
60x=780
x=13

5(x-10)=3(x-8)
5x-50=3x-24
2x=26
x=13

15(x-10)=9(x-8)约掉10
5(x-10)=3(x-8) 两边÷3
5x-50=3x-24 去括号
2x=26 移项
x=13

5(x-10)=3(x-8)
5x-50=3x-24
2x=26
x=13

150x-1500=90x-720
150x-90x=-720+1500
60x=780
x=90