3(2X-1)-2X=10
问题描述:
3(2X-1)-2X=10
-3(2X-1)=4X-1
3-2(5-Y)= -(2Y+3)
2(5-0.5Y)= -(1.5Y+3)
2Y-3分之1(Y+3)= -(Y-3)
答
3(2X-1)-2X=10 -3(2X-1)=4X-1 3-2(5-Y)= -(2Y+3) 2(5-0.5Y)= -(1.5Y+3)6x-3-2x=10 -6x+3=4x-1 3-10+2y=-2y-3 10-y= -1.5y-3x=13/4 x=2/5 y=1 y=-26 2Y-3分之1(Y+3)= -(Y-3)6y-(Y+3)= -y+36y-y-3=-y+3y=1