15x+1/2(x+5/8)=x+33/5
2个回答
两边同时乘以10:
140X+5X+25/8=66
145X=66-25/8
X=503/1160
约0.43
相关问题
18. (1)[x^4-33x^2-40x+244]/[x^2-8x+15]=5
18.(1)[x^4-33x^2-40x+244]/[x^2-8x+15]=5
x【5分之2x-33】+143=【1+15%】x
(x^4-33x^2-40x+244)/(x^2-8x+15)=5成立,则(1)x=根号下(19-8根号下3)(2)x=
5(X--8)+33=-6(X--5)
数学:条件充分性判断 (x^4-33x^2-40x+244)/(x^2-8x+15)=5成立
3/8x-15=(5/8x+15)*1/5
(-5/12)x8/15x3/2x(-2/3)x0x(-1)= (-1)x(-5/4)x8/15x3/2x(-2/3)x
0.78X98、0.5X2.33X8、1.5X105、0.3X2.5X0.4、1.2X2.5+0.8x2.5的简便方法计
33°15’16'' x5