1.当X=12时,X+19()30,60-X()32 2.X=0.2时,0.6X()0.12,X÷2()0.2
3个回答
X+19(>)30,60-X(>)32
0.6X(=)0.12,X÷2(
相关问题
用简便方法计算 19.2\2.4x3.2 12.5x0.32x0.5 14.3\1.1-1.8 3.2x2.4+32x0
5X+28=48 6X-12=30 45-3X=24 3X-4×6=48 1.8÷0.3-0.2X=2 1.2-0.9+
解方程 2(x+1.7)=9.2 1.2x÷2=60 2x-0.6×4=0.12 16×0.5+3x=14 7x+2.5
x-12x-4=0 x-2x=2 x-4x-12=0 (x+1)-4=0 (3x+2)
解下列方程:(1)12x+3=13x+2(2)0.5x-0.7=6.5+0.2x(3)1−73x=23x+19(4)0.
x-25%x=4.2 2x+30%x=9.2 (1-60%)x=0.32
x^2(x-1)^2-32(x^2-x)+60=0
4.2-0.6x=3.6x 5x+2x=33.6 7x-4x=0.75 2x+7x+2.1=12 56x-32x-119
0.5x+30=15.5x 3.2x-12.6=1.2x
2/5:x=4/5:60 0.2/6.3=X/5 0.6:x=15:1 12:14=X :1/6