【多选题】解方程:3.2*X1+4.5*X2-4.2*X3=4;5.2*X1+1.5*X2-6.2*X3=8;-7.2*X1+5.3*X2+6.1*X3=6
【多选题】解方程:3.2*X1+4.5*X2-4.2*X3=4;5.2*X1+1.5*X2-6.2*X3=8;-7.2*X1+5.3*X2+6.1*X3=1
【多选题】解方程:3.2*X1+4.5*X2-4.2*X3=4;5.2*X1+1.5*X2-6.2*X3=8;-7.2*X1+5.3*X2+6.1*X3=2
【简答题】解方程。 (1)30+6x=78 (2)5x-3.5=5.5 (3)2x+8x=120 (4)4n-6=14..4 (5)4x÷0.36=18 (6)9x÷3.2= 4.5
【多选题】解方程:3.2*X1+4.5*X2-4.2*X3=4;5.2*X1+1.5*X2-6.2*X3=8;-7.2*X1+5.3*X2+6.1*X3=10
【多选题】解方程:3.2*X1+4.5*X2-4.2*X3=4;5.2*X1+1.5*X2-6.2*X3=8;-7.2*X1+5.3*X2+6.1*X3=8
【多选题】解方程:3.2*X1+4.5*X2-4.2*X3=4;5.2*X1+1.5*X2-6.2*X3=8;-7.2*X1+5.3*X2+6.1*X3=4