10y+2(7y-2)=5(4y+3)+3y怎么算

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10y+2(7y-2)=5(4y+3)+3y怎么算10y+2(7y-2)=5(4y+3)+3y怎么算10y+2(7y-2)=5(4y+3)+3y怎么算10y+2(7y-2)=5(4y+3)+3y10y

10y+2(7y-2)=5(4y+3)+3y怎么算
10y+2(7y-2)=5(4y+3)+3y怎么算

10y+2(7y-2)=5(4y+3)+3y怎么算
10y+2(7y-2)=5(4y+3)+3y
10y+14y-4=20y+15+3y
10y+14y-20y-3y=15+4
y=19

24y-4=23y+15
y=19

10y+14y-4=20y+15+3y
10y+14y-20y-3y=15+4
解得 y=19

10y+14y-4=20y+15+3y
10y+14y-20y-3y=4+15
y=19
最后验证:等式两边都等于452