x+25+(325-x)×(1-5% )=325+16怎么算?求了

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x+25+(325-x)×(1-5%)=325+16怎么算?求了x+25+(325-x)×(1-5%)=325+16怎么算?求了x+25+(325-x)×(1-5%)=325+16怎么算?求了x+25

x+25+(325-x)×(1-5% )=325+16怎么算?求了
x+25+(325-x)×(1-5% )=325+16
怎么算?求了

x+25+(325-x)×(1-5% )=325+16怎么算?求了
x+25+0.95(325-x)=341
x+25+0.95×325-0.95x=341
x-0.95x=341-25-308.75
0.05x=7.25
x=7.25÷0.05
x=145

求助得到的回答
(-0.8)+1.2+(-0.7)+(-2.1)
=-0.8+1.2-0.7-2.1
=1.2-0.8-0.7-2.1
=0.4-0.7-2.1
=-(0.7-0.4)-2.1
=-0.3-2.1
=-(0.3+2.1)
=-2.4

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