(1)4X+25=9X-10 (2) 16-2X+6X=32
4个回答
(1),4x+25=9x-10
5x=35
x=7
(2),16-2x+6x=32
4x=16
x=4
相关问题
5X1.03X0.2、32X1.25、0.45X99、53X10.1、4.2X6.51+3.49X4.2、9.99X1.
简便算法:1/8x73/100x25x32、5/11x34x1/10x2/51、8/9x[3/4-(7/16=1/4)]
x-25%x=4.2 2x+30%x=9.2 (1-60%)x=0.32
1)2x+8=16 (2)x/5=10 (3)x+7x=8 (4)9x-3x=6 (5)6x-8=4 (6)5x+x=9
X(X+2)-6(X+2)=0 16(3X-1)-25(3X+1)=0 (X-2)=(2X+3) 4(3X-1)-9(3
2/1:3/4=10/X 8x1/16一25X=6 解方程
9x²-256=0 4(2x-1)²=25 (2x+1)²-16=0
电工回答,铝芯线,2.5x9 4x8 6x7 10x6 16x5 25x4 35x3.
(2013•龙海市模拟)求未知数x 4x+1.6=4 x-32% x=1.7 10:x=[2/9]:[4/5]
因式分解 C= 16x^2-40x+25-(6x-10)(5x-4)+4x-5