(1) 5X+3=3X+7 (2) 4x-2=8
2个回答
(1) 5X+3=3X+7
5x-3x=7-3
2x=4
x=2
(2) 4x-2=8
4x=10
x=5/2
相关问题
(4.5-x)*7=17.5 x/2+4=3/2x+1 7/2*2/3-4x=7/3 5/8(x-.3)=75% 1+x
填空 8x^5-2x^3+1/3x^2-4=8x^5-( )-4=7x^5-( )-3
-1/3(6-5x)=8x-2 / 2=2x+3 / 5x+1 /2 - x-1 / 4 =12/7(3x+7)=2 -
1/4x-1/2=3/4;7x-5/4=3/8;2x-1/6=5x+1/8;1/2x-7=9x-2/6;1/5x-1/2
解方程 (1)4x-2=3-x (2)2-7x=2x-4 (3)10x-3=9 (4)5.8x-3.7x=4.2 (5)
解方程 0.5x+6=18 3/4x-1/3x=2 8-4.5x=7/2 (x-7)/3=8
15=X/3+2 .(x+2)/3=(3-x)/2.(x-3)/4-(1+3x)/8.7-(X+5)/2=(2-X)/5
(1)5+2x=1 (2)8-x=3x+2 (3)10x-3=9 (4)6x-7=4x-5 (5)1/2x-6=3/4x
解方程 x-[1/4]x=[3/5] [5/7]x÷[5/14]=[7/8] 2-2x=3.8.
3^2-1^2=8=8x1 5^2-3^2=16=8x2 7^2-5^2=24=8x3 9^2-7^2=32=8x4 …